87529328 has 20 divisors (see below), whose sum is σ = 179564400. Its totient is φ = 41190144.

The previous prime is 87529307. The next prime is 87529339. The reversal of 87529328 is 82392578.

It is a super-2 number, since 2×87529328² = 15322766520263168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160628 + ... + 161171.

It is an arithmetic number, because the mean of its divisors is an integer number (8978220).

Almost surely, 2^87529328 is an apocalyptic number.

It is an amenable number.

87529328 is an abundant number, since it is smaller than the sum of its proper divisors (92035072).

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

87529328 is a wasteful number, since it uses less digits than its factorization.

87529328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321824 (or 321818 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 87529328 is about 9355.7109831375. The cubic root of 87529328 is about 444.0015961850.

It can be divided in two parts, 875 and 29328, that added together give a palindrome (30203).

The spelling of 87529328 in words is "eighty-seven million, five hundred twenty-nine thousand, three hundred twenty-eight".