86958831 has 8 divisors (see below), whose sum is σ = 117675904. Its totient is φ = 57107160.

The previous prime is 86958829. The next prime is 86958847. The reversal of 86958831 is 13885968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86958831 - 2¹ = 86958829 is a prime.

It is a super-2 number, since 2×86958831² = 15123676577773122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86958871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216115 + ... + 216516.

It is an arithmetic number, because the mean of its divisors is an integer number (14709488).

Almost surely, 2^86958831 is an apocalyptic number.

86958831 is a deficient number, since it is larger than the sum of its proper divisors (30717073).

86958831 is a wasteful number, since it uses less digits than its factorization.

86958831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432701.

The product of its digits is 414720, while the sum is 48.

The square root of 86958831 is about 9325.1719019008. The cubic root of 86958831 is about 443.0348577320.

The spelling of 86958831 in words is "eighty-six million, nine hundred fifty-eight thousand, eight hundred thirty-one".