85630572 has 18 divisors (see below), whose sum is σ = 216455148. Its totient is φ = 28543512.

The previous prime is 85630561. The next prime is 85630579. The reversal of 85630572 is 27503658.

85630572 is a `hidden beast` number, since 8 + 56 + 30 + 572 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×85630572² = 14665189722094368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2378627 = 85630572 / (8 + 5 + 6 + 3 + 0 + 5 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (85630579) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1189278 + ... + 1189349.

It is an arithmetic number, because the mean of its divisors is an integer number (12025286).

Almost surely, 2^85630572 is an apocalyptic number.

It is an amenable number.

85630572 is an abundant number, since it is smaller than the sum of its proper divisors (130824576).

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

85630572 is a wasteful number, since it uses less digits than its factorization.

85630572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378637 (or 2378632 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 85630572 is about 9253.6788360090. The cubic root of 85630572 is about 440.7675514623.

The spelling of 85630572 in words is "eighty-five million, six hundred thirty thousand, five hundred seventy-two".