38687165 has 16 divisors (see below), whose sum is σ = 50768640. Its totient is φ = 28067520.

The previous prime is 38687161. The next prime is 38687167. The reversal of 38687165 is 56178683.

It is not a de Polignac number, because 38687165 - 2² = 38687161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38687161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36716 + ... + 37754.

It is an arithmetic number, because the mean of its divisors is an integer number (3173040).

Almost surely, 2^38687165 is an apocalyptic number.

It is an amenable number.

38687165 is a deficient number, since it is larger than the sum of its proper divisors (12081475).

38687165 is a wasteful number, since it uses less digits than its factorization.

38687165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732.

The product of its digits is 241920, while the sum is 44.

The square root of 38687165 is about 6219.9007226804. The cubic root of 38687165 is about 338.2119657108.

The spelling of 38687165 in words is "thirty-eight million, six hundred eighty-seven thousand, one hundred sixty-five".