85656738 has 24 divisors (see below), whose sum is σ = 179092368. Its totient is φ = 27309832.

The previous prime is 85656737. The next prime is 85656793. The reversal of 85656738 is 83765658.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85656737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10320 + ... + 16667.

It is an arithmetic number, because the mean of its divisors is an integer number (7462182).

Almost surely, 2^85656738 is an apocalyptic number.

85656738 is an abundant number, since it is smaller than the sum of its proper divisors (93435630).

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

85656738 is a wasteful number, since it uses less digits than its factorization.

85656738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27038 (or 27015 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 85656738 is about 9255.0925441078. The cubic root of 85656738 is about 440.8124417741.

The spelling of 85656738 in words is "eighty-five million, six hundred fifty-six thousand, seven hundred thirty-eight".