Search a number
-
+
4386989 = 43102023
BaseRepresentation
bin10000101111000010101101
322020212211002
4100233002231
52110340424
6234010045
752201025
oct20570255
98225732
104386989
112527012
121576925
13ba7a69
14822a85
155b9cae
hex42f0ad

4386989 has 4 divisors (see below), whose sum is σ = 4489056. Its totient is φ = 4284924.

The previous prime is 4386973. The next prime is 4387013. The reversal of 4386989 is 9896834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4386989 - 24 = 4386973 is a prime.

It is a super-2 number, since 2×43869892 = 38491344972242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4386919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50969 + ... + 51054.

It is an arithmetic number, because the mean of its divisors is an integer number (1122264).

Almost surely, 24386989 is an apocalyptic number.

It is an amenable number.

4386989 is a deficient number, since it is larger than the sum of its proper divisors (102067).

4386989 is a wasteful number, since it uses less digits than its factorization.

4386989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102066.

The product of its digits is 373248, while the sum is 47.

The square root of 4386989 is about 2094.5140247800. The cubic root of 4386989 is about 163.7025766368.

The spelling of 4386989 in words is "four million, three hundred eighty-six thousand, nine hundred eighty-nine".

Divisors: 1 43 102023 4386989