85715800 has 24 divisors (see below), whose sum is σ = 199289700. Its totient is φ = 34286240.

The previous prime is 85715767. The next prime is 85715801. The reversal of 85715800 is 851758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85715801) 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, 214090 + ... + 214489.

Almost surely, 2^85715800 is an apocalyptic number.

It is an amenable number.

85715800 is an abundant number, since it is smaller than the sum of its proper divisors (113573900).

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

85715800 is a wasteful number, since it uses less digits than its factorization.

85715800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428595 (or 428586 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 85715800 is about 9258.2827781398. The cubic root of 85715800 is about 440.9137347698.

The spelling of 85715800 in words is "eighty-five million, seven hundred fifteen thousand, eight hundred".