Search a number
6998669 = 19479769
BaseRepresentation
bin11010101100101010001101
3111011120100222
4122230222031
53242424134
6410001125
7113326166
oct32545215
914146328
106998669
113a50227
1224161a5
1315b0732
14d0276d
15933a2e
hex6aca8d

6998669 has 8 divisors (see below), whose sum is σ = 7392000. Its totient is φ = 6607872.

The previous prime is 6998627. The next prime is 6998681. The reversal of 6998669 is 9668996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6998669 - 220 = 5950093 is a prime.

It is a super-2 number, since 2×69986692 = 97962735543122, which contains 22 as substring.

6998669 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6998669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6998269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8717 + ... + 9485.

It is an arithmetic number, because the mean of its divisors is an integer number (924000).

Almost surely, 26998669 is an apocalyptic number.

It is an amenable number.

6998669 is a deficient number, since it is larger than the sum of its proper divisors (393331).

6998669 is a wasteful number, since it uses less digits than its factorization.

6998669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its digits is 1259712, while the sum is 53.

The square root of 6998669 is about 2645.4997637498. The cubic root of 6998669 is about 191.2809931687.

It can be divided in two parts, 6998 and 669, that added together give a palindrome (7667).

The spelling of 6998669 in words is "six million, nine hundred ninety-eight thousand, six hundred sixty-nine".

Divisors: 1 19 479 769 9101 14611 368351 6998669