87654972 has 24 divisors (see below), whose sum is σ = 206994816. Its totient is φ = 28865968.

The previous prime is 87654901. The next prime is 87654979. The reversal of 87654972 is 27945678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87654979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43008 + ... + 44999.

It is an arithmetic number, because the mean of its divisors is an integer number (8624784).

Almost surely, 2^87654972 is an apocalyptic number.

It is an amenable number.

87654972 is an abundant number, since it is smaller than the sum of its proper divisors (119339844).

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

87654972 is a wasteful number, since it uses less digits than its factorization.

87654972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88097 (or 88095 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 87654972 is about 9362.4234042261. The cubic root of 87654972 is about 444.2139420214.

The spelling of 87654972 in words is "eighty-seven million, six hundred fifty-four thousand, nine hundred seventy-two".