85651472 has 20 divisors (see below), whose sum is σ = 166118460. Its totient is φ = 42782208.

The previous prime is 85651469. The next prime is 85651477. The reversal of 85651472 is 27415658.

It can be written as a sum of positive squares in 2 ways, for example, as 28558336 + 57093136 = 5344^2 + 7556^2 .

It is not an unprimeable number, because it can be changed into a prime (85651477) 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, 18548 + ... + 22700.

It is an arithmetic number, because the mean of its divisors is an integer number (8305923).

Almost surely, 2^85651472 is an apocalyptic number.

It is an amenable number.

85651472 is a deficient number, since it is larger than the sum of its proper divisors (80466988).

85651472 is a wasteful number, since it uses less digits than its factorization.

85651472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5450 (or 5444 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 85651472 is about 9254.8080477123. The cubic root of 85651472 is about 440.8034081750.

The spelling of 85651472 in words is "eighty-five million, six hundred fifty-one thousand, four hundred seventy-two".