85684972 has 6 divisors (see below), whose sum is σ = 149948708. Its totient is φ = 42842484.

The previous prime is 85684969. The next prime is 85684987. The reversal of 85684972 is 27948658.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10710618 + ... + 10710625.

Almost surely, 2^85684972 is an apocalyptic number.

It is an amenable number.

85684972 is a deficient number, since it is larger than the sum of its proper divisors (64263736).

85684972 is a wasteful number, since it uses less digits than its factorization.

85684972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21421247 (or 21421245 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 85684972 is about 9256.6177408382. The cubic root of 85684972 is about 440.8608696875.

The spelling of 85684972 in words is "eighty-five million, six hundred eighty-four thousand, nine hundred seventy-two".