85670544 has 40 divisors (see below), whose sum is σ = 232966240. Its totient is φ = 27053568.

The previous prime is 85670539. The next prime is 85670569. The reversal of 85670544 is 44507658.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46057 + ... + 47880.

It is an arithmetic number, because the mean of its divisors is an integer number (5824156).

Almost surely, 2^85670544 is an apocalyptic number.

It is an amenable number.

85670544 is an abundant number, since it is smaller than the sum of its proper divisors (147295696).

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

85670544 is a wasteful number, since it uses less digits than its factorization.

85670544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93967 (or 93961 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 85670544 is about 9255.8383736969. The cubic root of 85670544 is about 440.8361236224.

The spelling of 85670544 in words is "eighty-five million, six hundred seventy thousand, five hundred forty-four".