87022972 has 12 divisors (see below), whose sum is σ = 152724096. Its totient is φ = 43387520.

The previous prime is 87022967. The next prime is 87022973. The reversal of 87022972 is 27922078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87022973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29404 + ... + 32227.

It is an arithmetic number, because the mean of its divisors is an integer number (12727008).

Almost surely, 2^87022972 is an apocalyptic number.

It is an amenable number.

87022972 is a deficient number, since it is larger than the sum of its proper divisors (65701124).

87022972 is a wasteful number, since it uses less digits than its factorization.

87022972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61988 (or 61986 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 87022972 is about 9328.6104002686. The cubic root of 87022972 is about 443.1437587472.

The spelling of 87022972 in words is "eighty-seven million, twenty-two thousand, nine hundred seventy-two".