85311954 has 112 divisors (see below), whose sum is σ = 236507712. Its totient is φ = 22464864.

The previous prime is 85311943. The next prime is 85312013. The reversal of 85311954 is 45911358.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 132357 + ... + 132999.

It is an arithmetic number, because the mean of its divisors is an integer number (2111676).

Almost surely, 2^85311954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85311954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118253856).

85311954 is an abundant number, since it is smaller than the sum of its proper divisors (151195758).

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

85311954 is a wasteful number, since it uses less digits than its factorization.

85311954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 668 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 85311954 is about 9236.4470441832. The cubic root of 85311954 is about 440.2201962591.

The spelling of 85311954 in words is "eighty-five million, three hundred eleven thousand, nine hundred fifty-four".