85772984 has 32 divisors (see below), whose sum is σ = 179731440. Its totient is φ = 38035200.

The previous prime is 85772971. The next prime is 85773013. The reversal of 85772984 is 48927758.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8279 + ... + 15494.

Almost surely, 2^85772984 is an apocalyptic number.

It is an amenable number.

85772984 is an abundant number, since it is smaller than the sum of its proper divisors (93958456).

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

85772984 is a wasteful number, since it uses less digits than its factorization.

85772984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23831 (or 23827 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 85772984 is about 9261.3705249277. The cubic root of 85772984 is about 441.0117626177.

The spelling of 85772984 in words is "eighty-five million, seven hundred seventy-two thousand, nine hundred eighty-four".