85311177 has 16 divisors (see below), whose sum is σ = 130127232. Its totient is φ = 48700800.

The previous prime is 85311169. The next prime is 85311179. The reversal of 85311177 is 77111358.

It is not a de Polignac number, because 85311177 - 2³ = 85311169 is a prime.

It is a super-2 number, since 2×85311177² = 14555993842250658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85311179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38853 + ... + 40989.

It is an arithmetic number, because the mean of its divisors is an integer number (8132952).

Almost surely, 2^85311177 is an apocalyptic number.

It is an amenable number.

85311177 is a deficient number, since it is larger than the sum of its proper divisors (44816055).

85311177 is a wasteful number, since it uses less digits than its factorization.

85311177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048.

The product of its digits is 5880, while the sum is 33.

The square root of 85311177 is about 9236.4049824594. The cubic root of 85311177 is about 440.2188597831.

The spelling of 85311177 in words is "eighty-five million, three hundred eleven thousand, one hundred seventy-seven".