38977565 has 16 divisors (see below), whose sum is σ = 52214976. Its totient is φ = 27686400.

The previous prime is 38977559. The next prime is 38977591. The reversal of 38977565 is 56577983.

It is a happy number.

It is not a de Polignac number, because 38977565 - 2¹⁰ = 38976541 is a prime.

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, 5876 + ... + 10605.

It is an arithmetic number, because the mean of its divisors is an integer number (3263436).

Almost surely, 2^38977565 is an apocalyptic number.

It is an amenable number.

38977565 is a deficient number, since it is larger than the sum of its proper divisors (13237411).

38977565 is a wasteful number, since it uses less digits than its factorization.

38977565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16540.

The product of its digits is 1587600, while the sum is 50.

The square root of 38977565 is about 6243.2015024345. The cubic root of 38977565 is about 339.0561046243.

The spelling of 38977565 in words is "thirty-eight million, nine hundred seventy-seven thousand, five hundred sixty-five".