88221972 has 48 divisors (see below), whose sum is σ = 209768832. Its totient is φ = 28853760.

The previous prime is 88221953. The next prime is 88221977. The reversal of 88221972 is 27912288.

Its product of digits (32256) is a multiple of the sum of its prime factors (768).

It is a self number, because there is not a number n which added to its sum of digits gives 88221972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88221977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169072 + ... + 169592.

It is an arithmetic number, because the mean of its divisors is an integer number (4370184).

Almost surely, 2^88221972 is an apocalyptic number.

It is an amenable number.

88221972 is an abundant number, since it is smaller than the sum of its proper divisors (121546860).

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

88221972 is a wasteful number, since it uses less digits than its factorization.

88221972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 766 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 88221972 is about 9392.6552156459. The cubic root of 88221972 is about 445.1696899452.

The spelling of 88221972 in words is "eighty-eight million, two hundred twenty-one thousand, nine hundred seventy-two".