85888831 has 16 divisors (see below), whose sum is σ = 102795264. Its totient is φ = 70164864.

The previous prime is 85888823. The next prime is 85888849. The reversal of 85888831 is 13888858.

It is not a de Polignac number, because 85888831 - 2³ = 85888823 is a prime.

It is a super-2 number, since 2×85888831² = 14753782581093122, 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 (85888801) 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 15 ways as a sum of consecutive naturals, for example, 53466 + ... + 55048.

It is an arithmetic number, because the mean of its divisors is an integer number (6424704).

Almost surely, 2^85888831 is an apocalyptic number.

85888831 is a deficient number, since it is larger than the sum of its proper divisors (16906433).

85888831 is a wasteful number, since it uses less digits than its factorization.

85888831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950.

The product of its digits is 491520, while the sum is 49.

The square root of 85888831 is about 9267.6227264601. The cubic root of 85888831 is about 441.2102202340.

The spelling of 85888831 in words is "eighty-five million, eight hundred eighty-eight thousand, eight hundred thirty-one".