38085865 has 12 divisors (see below), whose sum is σ = 48551436. Its totient is φ = 28675328.

The previous prime is 38085851. The next prime is 38085871. The reversal of 38085865 is 56858083.

It can be written as a sum of positive squares in 6 ways, for example, as 1022121 + 37063744 = 1011^2 + 6088^2 .

It is not a de Polignac number, because 38085865 - 2⁷ = 38085737 is a prime.

It is a super-2 number, since 2×38085865² = 2901066225596450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11734 + ... + 14623.

It is an arithmetic number, because the mean of its divisors is an integer number (4045953).

Almost surely, 2^38085865 is an apocalyptic number.

It is an amenable number.

38085865 is a deficient number, since it is larger than the sum of its proper divisors (10465571).

38085865 is a wasteful number, since it uses less digits than its factorization.

38085865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26396 (or 26379 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 38085865 is about 6171.3746442750. The cubic root of 38085865 is about 336.4505747672.

The spelling of 38085865 in words is "thirty-eight million, eighty-five thousand, eight hundred sixty-five".