86230931 has 4 divisors (see below), whose sum is σ = 86542512. Its totient is φ = 85919352.

The previous prime is 86230901. The next prime is 86230973. The reversal of 86230931 is 13903268.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86230931 is a prime.

It is a super-2 number, since 2×86230931² = 14871546922253522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86230901) 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, 155375 + ... + 155928.

It is an arithmetic number, because the mean of its divisors is an integer number (21635628).

Almost surely, 2^86230931 is an apocalyptic number.

86230931 is a deficient number, since it is larger than the sum of its proper divisors (311581).

86230931 is a wasteful number, since it uses less digits than its factorization.

86230931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311580.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 86230931 is about 9286.0611133031. The cubic root of 86230931 is about 441.7952325058.

The spelling of 86230931 in words is "eighty-six million, two hundred thirty thousand, nine hundred thirty-one".