88821632 has 32 divisors (see below), whose sum is σ = 179607720. Its totient is φ = 43743744.

The previous prime is 88821631. The next prime is 88821659. The reversal of 88821632 is 23612888.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×88821632² = 15778564622286848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88821631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3398 + ... + 13754.

Almost surely, 2^88821632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88821632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89803860).

88821632 is an abundant number, since it is smaller than the sum of its proper divisors (90786088).

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

88821632 is a wasteful number, since it uses less digits than its factorization.

88821632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10438 (or 10426 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 88821632 is about 9424.5229056966. The cubic root of 88821632 is about 446.1760450432.

The spelling of 88821632 in words is "eighty-eight million, eight hundred twenty-one thousand, six hundred thirty-two".