85622920 has 16 divisors (see below), whose sum is σ = 192651660. Its totient is φ = 34249152.

The previous prime is 85622917. The next prime is 85622939. The reversal of 85622920 is 2922658.

It can be written as a sum of positive squares in 2 ways, for example, as 81757764 + 3865156 = 9042^2 + 1966^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070247 + ... + 1070326.

Almost surely, 2^85622920 is an apocalyptic number.

It is an amenable number.

85622920 is an abundant number, since it is smaller than the sum of its proper divisors (107028740).

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

85622920 is a wasteful number, since it uses less digits than its factorization.

85622920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140584 (or 2140580 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 85622920 is about 9253.2653695871. The cubic root of 85622920 is about 440.7544219857.

The spelling of 85622920 in words is "eighty-five million, six hundred twenty-two thousand, nine hundred twenty".