85757859 has 24 divisors (see below), whose sum is σ = 140142912. Its totient is φ = 51972840.

The previous prime is 85757839. The next prime is 85757863. The reversal of 85757859 is 95875758.

It is not a de Polignac number, because 85757859 - 2¹⁵ = 85725091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85757839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13369 + ... + 18714.

It is an arithmetic number, because the mean of its divisors is an integer number (5839288).

Almost surely, 2^85757859 is an apocalyptic number.

85757859 is a deficient number, since it is larger than the sum of its proper divisors (54385053).

85757859 is a wasteful number, since it uses less digits than its factorization.

85757859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32109 (or 32097 counting only the distinct ones).

The product of its digits is 3528000, while the sum is 54.

The square root of 85757859 is about 9260.5539251170. The cubic root of 85757859 is about 440.9858387789.

The spelling of 85757859 in words is "eighty-five million, seven hundred fifty-seven thousand, eight hundred fifty-nine".