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4790689 = 13813469
BaseRepresentation
bin10010010001100110100001
3100000101120221
4102101212201
52211300224
6250403041
755502011
oct22214641
910011527
104790689
112782352
121730481
13cb9737
148c9c41
156496e4
hex4919a1

4790689 has 4 divisors (see below), whose sum is σ = 4795540. Its totient is φ = 4785840.

The previous prime is 4790671. The next prime is 4790699. The reversal of 4790689 is 9860974.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 921600 + 3869089 = 960^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 4790689 - 213 = 4782497 is a prime.

It is a Duffinian number.

4790689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4790609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354 + ... + 3115.

It is an arithmetic number, because the mean of its divisors is an integer number (1198885).

Almost surely, 24790689 is an apocalyptic number.

It is an amenable number.

4790689 is a deficient number, since it is larger than the sum of its proper divisors (4851).

4790689 is a wasteful number, since it uses less digits than its factorization.

4790689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4850.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 4790689 is about 2188.7642632317. The cubic root of 4790689 is about 168.5773902147.

The spelling of 4790689 in words is "four million, seven hundred ninety thousand, six hundred eighty-nine".

Divisors: 1 1381 3469 4790689