38889965 has 16 divisors (see below), whose sum is σ = 51010560. Its totient is φ = 28335360.

The previous prime is 38889953. The next prime is 38889971. The reversal of 38889965 is 56998883.

It is not a de Polignac number, because 38889965 - 2⁶ = 38889901 is a prime.

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 38889965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4745 + ... + 10014.

It is an arithmetic number, because the mean of its divisors is an integer number (3188160).

Almost surely, 2^38889965 is an apocalyptic number.

It is an amenable number.

38889965 is a deficient number, since it is larger than the sum of its proper divisors (12120595).

38889965 is a wasteful number, since it uses less digits than its factorization.

38889965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14812.

The product of its digits is 3732480, while the sum is 56.

The square root of 38889965 is about 6236.1819248640. The cubic root of 38889965 is about 338.8019105916.

The spelling of 38889965 in words is "thirty-eight million, eight hundred eighty-nine thousand, nine hundred sixty-five".