85677331 has 16 divisors (see below), whose sum is σ = 94112928. Its totient is φ = 77670400.

The previous prime is 85677329. The next prime is 85677343. The reversal of 85677331 is 13377658.

It is not a de Polignac number, because 85677331 - 2¹ = 85677329 is a prime.

It is a super-2 number, since 2×85677331² = 14681210094567122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85677301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57111 + ... + 58591.

It is an arithmetic number, because the mean of its divisors is an integer number (5882058).

Almost surely, 2^85677331 is an apocalyptic number.

85677331 is a deficient number, since it is larger than the sum of its proper divisors (8435597).

85677331 is a wasteful number, since it uses less digits than its factorization.

85677331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622.

The product of its digits is 105840, while the sum is 40.

The square root of 85677331 is about 9256.2049998906. The cubic root of 85677331 is about 440.8477646355.

It can be divided in two parts, 856 and 77331, that added together give a palindrome (78187).

The spelling of 85677331 in words is "eighty-five million, six hundred seventy-seven thousand, three hundred thirty-one".