85857936 has 40 divisors (see below), whose sum is σ = 227214624. Its totient is φ = 27920640.

The previous prime is 85857929. The next prime is 85857943. The reversal of 85857936 is 63975858.

It is an interprime number because it is at equal distance from previous prime (85857929) and next prime (85857943).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19846 + ... + 23781.

Almost surely, 2^85857936 is an apocalyptic number.

It is an amenable number.

85857936 is an abundant number, since it is smaller than the sum of its proper divisors (141356688).

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

85857936 is a wasteful number, since it uses less digits than its factorization.

85857936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43679 (or 43673 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The square root of 85857936 is about 9265.9557521067. The cubic root of 85857936 is about 441.1573114357.

The spelling of 85857936 in words is "eighty-five million, eight hundred fifty-seven thousand, nine hundred thirty-six".