85179936 has 24 divisors (see below), whose sum is σ = 223597584. Its totient is φ = 28393280.

The previous prime is 85179929. The next prime is 85179937. The reversal of 85179936 is 63997158.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (85179937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443550 + ... + 443741.

It is an arithmetic number, because the mean of its divisors is an integer number (9316566).

Almost surely, 2^85179936 is an apocalyptic number.

It is an amenable number.

85179936 is an abundant number, since it is smaller than the sum of its proper divisors (138417648).

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

85179936 is a wasteful number, since it uses less digits than its factorization.

85179936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887304 (or 887296 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 85179936 is about 9229.2976980917. The cubic root of 85179936 is about 439.9930026435.

The spelling of 85179936 in words is "eighty-five million, one hundred seventy-nine thousand, nine hundred thirty-six".