38517985 has 16 divisors (see below), whose sum is σ = 52617600. Its totient is φ = 26794240.

The previous prime is 38517977. The next prime is 38517989. The reversal of 38517985 is 58971583.

It is not a de Polignac number, because 38517985 - 2³ = 38517977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38517989) 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, 13960 + ... + 16489.

It is an arithmetic number, because the mean of its divisors is an integer number (3288600).

Almost surely, 2^38517985 is an apocalyptic number.

It is an amenable number.

38517985 is a deficient number, since it is larger than the sum of its proper divisors (14099615).

38517985 is a wasteful number, since it uses less digits than its factorization.

38517985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30488.

The product of its digits is 302400, while the sum is 46.

The square root of 38517985 is about 6206.2859263814. The cubic root of 38517985 is about 337.7182420182.

The spelling of 38517985 in words is "thirty-eight million, five hundred seventeen thousand, nine hundred eighty-five".