85931166 has 16 divisors (see below), whose sum is σ = 172418688. Its totient is φ = 28551000.

The previous prime is 85931161. The next prime is 85931207. The reversal of 85931166 is 66113958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85931161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21160 + ... + 24891.

It is an arithmetic number, because the mean of its divisors is an integer number (10776168).

Almost surely, 2^85931166 is an apocalyptic number.

85931166 is an abundant number, since it is smaller than the sum of its proper divisors (86487522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85931166 is a wasteful number, since it uses less digits than its factorization.

85931166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46367.

The product of its digits is 38880, while the sum is 39.

The square root of 85931166 is about 9269.9064720201. The cubic root of 85931166 is about 441.2826998427.

The spelling of 85931166 in words is "eighty-five million, nine hundred thirty-one thousand, one hundred sixty-six".