87328972 has 12 divisors (see below), whose sum is σ = 152969656. Its totient is φ = 43623360.

The previous prime is 87328963. The next prime is 87328973. The reversal of 87328972 is 27982378.

It is not an unprimeable number, because it can be changed into a prime (87328973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5229 + ... + 14212.

Almost surely, 2^87328972 is an apocalyptic number.

It is an amenable number.

87328972 is a deficient number, since it is larger than the sum of its proper divisors (65640684).

87328972 is a wasteful number, since it uses less digits than its factorization.

87328972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20568 (or 20566 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 87328972 is about 9344.9971642585. The cubic root of 87328972 is about 443.6625618370.

The spelling of 87328972 in words is "eighty-seven million, three hundred twenty-eight thousand, nine hundred seventy-two".