85237972 has 12 divisors (see below), whose sum is σ = 153978496. Its totient is φ = 41244120.

The previous prime is 85237967. The next prime is 85237981. The reversal of 85237972 is 27973258.

It is a congruent number.

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, 343578 + ... + 343825.

Almost surely, 2^85237972 is an apocalyptic number.

It is an amenable number.

85237972 is a deficient number, since it is larger than the sum of its proper divisors (68740524).

85237972 is a wasteful number, since it uses less digits than its factorization.

85237972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687438 (or 687436 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 85237972 is about 9232.4412806148. The cubic root of 85237972 is about 440.0929073782.

The spelling of 85237972 in words is "eighty-five million, two hundred thirty-seven thousand, nine hundred seventy-two".