87328988 has 6 divisors (see below), whose sum is σ = 152825736. Its totient is φ = 43664492.

The previous prime is 87328987. The next prime is 87329041. The reversal of 87328988 is 88982378.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87328987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10916120 + ... + 10916127.

It is an arithmetic number, because the mean of its divisors is an integer number (25470956).

Almost surely, 2^87328988 is an apocalyptic number.

It is an amenable number.

87328988 is a deficient number, since it is larger than the sum of its proper divisors (65496748).

87328988 is a wasteful number, since it uses less digits than its factorization.

87328988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21832251 (or 21832249 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 53.

The square root of 87328988 is about 9344.9980203315. The cubic root of 87328988 is about 443.6625889322.

The spelling of 87328988 in words is "eighty-seven million, three hundred twenty-eight thousand, nine hundred eighty-eight".