88221904 has 20 divisors (see below), whose sum is σ = 171310464. Its totient is φ = 44012768.

The previous prime is 88221899. The next prime is 88221923. The reversal of 88221904 is 40912288.

It is a self number, because there is not a number n which added to its sum of digits gives 88221904.

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, 1569 + ... + 13375.

Almost surely, 2^88221904 is an apocalyptic number.

It is an amenable number.

88221904 is a deficient number, since it is larger than the sum of its proper divisors (83088560).

88221904 is a wasteful number, since it uses less digits than its factorization.

88221904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12282 (or 12276 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 88221904 is about 9392.6515957955. The cubic root of 88221904 is about 445.1695755688.

The spelling of 88221904 in words is "eighty-eight million, two hundred twenty-one thousand, nine hundred four".