85178732 has 12 divisors (see below), whose sum is σ = 149441040. Its totient is φ = 42481296.

The previous prime is 85178719. The next prime is 85178777. The reversal of 85178732 is 23787158.

It is a self number, because there is not a number n which added to its sum of digits gives 85178732.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25232 + ... + 28407.

It is an arithmetic number, because the mean of its divisors is an integer number (12453420).

Almost surely, 2^85178732 is an apocalyptic number.

It is an amenable number.

85178732 is a deficient number, since it is larger than the sum of its proper divisors (64262308).

85178732 is a wasteful number, since it uses less digits than its factorization.

85178732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54040 (or 54038 counting only the distinct ones).

The product of its digits is 94080, while the sum is 41.

The square root of 85178732 is about 9229.2324707963. The cubic root of 85178732 is about 439.9909295651.

The spelling of 85178732 in words is "eighty-five million, one hundred seventy-eight thousand, seven hundred thirty-two".