85697133 has 16 divisors (see below), whose sum is σ = 115814400. Its totient is φ = 56360304.

The previous prime is 85697063. The next prime is 85697141. The reversal of 85697133 is 33179658.

It is a de Polignac number, because none of the positive numbers 2^k-85697133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85697033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142768 + ... + 143366.

It is an arithmetic number, because the mean of its divisors is an integer number (7238400).

Almost surely, 2^85697133 is an apocalyptic number.

It is an amenable number.

85697133 is a deficient number, since it is larger than the sum of its proper divisors (30117267).

85697133 is a wasteful number, since it uses less digits than its factorization.

85697133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168.

The product of its digits is 136080, while the sum is 42.

The square root of 85697133 is about 9257.2745989303. The cubic root of 85697133 is about 440.8817253688.

The spelling of 85697133 in words is "eighty-five million, six hundred ninety-seven thousand, one hundred thirty-three".