86958929 has 4 divisors (see below), whose sum is σ = 90739776. Its totient is φ = 83178084.

The previous prime is 86958919. The next prime is 86958931. The reversal of 86958929 is 92985968.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86958929 - 2¹⁶ = 86893393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86958919) 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, 1890389 + ... + 1890434.

It is an arithmetic number, because the mean of its divisors is an integer number (22684944).

Almost surely, 2^86958929 is an apocalyptic number.

It is an amenable number.

86958929 is a deficient number, since it is larger than the sum of its proper divisors (3780847).

86958929 is a wasteful number, since it uses less digits than its factorization.

86958929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780846.

The product of its digits is 2799360, while the sum is 56.

The square root of 86958929 is about 9325.1771564941. The cubic root of 86958929 is about 443.0350241609.

The spelling of 86958929 in words is "eighty-six million, nine hundred fifty-eight thousand, nine hundred twenty-nine".