88221584 has 30 divisors (see below), whose sum is σ = 187885110. Its totient is φ = 40099840.

The previous prime is 88221499. The next prime is 88221589. The reversal of 88221584 is 48512288.

It can be written as a sum of positive squares in only one way, i.e., 87011584 + 1210000 = 9328^2 + 1100^2 .

It is not an unprimeable number, because it can be changed into a prime (88221589) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20849 + ... + 24720.

It is an arithmetic number, because the mean of its divisors is an integer number (6262837).

Almost surely, 2^88221584 is an apocalyptic number.

It is an amenable number.

88221584 is an abundant number, since it is smaller than the sum of its proper divisors (99663526).

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

88221584 is a wasteful number, since it uses less digits than its factorization.

88221584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45599 (or 45582 counting only the distinct ones).

The product of its digits is 40960, while the sum is 38.

The square root of 88221584 is about 9392.6345611868. The cubic root of 88221584 is about 445.1690373259.

The spelling of 88221584 in words is "eighty-eight million, two hundred twenty-one thousand, five hundred eighty-four".