88031521 has 8 divisors (see below), whose sum is σ = 88748288. Its totient is φ = 87318000.

The previous prime is 88031519. The next prime is 88031549. The reversal of 88031521 is 12513088.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88031521 - 2¹ = 88031519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88031521.

It is not an unprimeable number, because it can be changed into a prime (88031221) 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, 88336 + ... + 89326.

It is an arithmetic number, because the mean of its divisors is an integer number (11093536).

Almost surely, 2^88031521 is an apocalyptic number.

It is an amenable number.

88031521 is a deficient number, since it is larger than the sum of its proper divisors (716767).

88031521 is a wasteful number, since it uses less digits than its factorization.

88031521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 88031521 is about 9382.5114441710. The cubic root of 88031521 is about 444.8491194079.

The spelling of 88031521 in words is "eighty-eight million, thirty-one thousand, five hundred twenty-one".