86038931 has 4 divisors (see below), whose sum is σ = 93860664. Its totient is φ = 78217200.

The previous prime is 86038913. The next prime is 86038937. The reversal of 86038931 is 13983068.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86038931 - 2¹⁰ = 86037907 is a prime.

It is a super-2 number, since 2×86038931² = 14805395295245522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86038937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3910850 + ... + 3910871.

It is an arithmetic number, because the mean of its divisors is an integer number (23465166).

Almost surely, 2^86038931 is an apocalyptic number.

86038931 is a deficient number, since it is larger than the sum of its proper divisors (7821733).

86038931 is a wasteful number, since it uses less digits than its factorization.

86038931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7821732.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 86038931 is about 9275.7172768471. The cubic root of 86038931 is about 441.4670914782.

The spelling of 86038931 in words is "eighty-six million, thirty-eight thousand, nine hundred thirty-one".