88991132 has 12 divisors (see below), whose sum is σ = 156268056. Its totient is φ = 44343120.

The previous prime is 88991129. The next prime is 88991183. The reversal of 88991132 is 23119988.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 88991132.

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, 36794 + ... + 39137.

It is an arithmetic number, because the mean of its divisors is an integer number (13022338).

Almost surely, 2^88991132 is an apocalyptic number.

It is an amenable number.

88991132 is a deficient number, since it is larger than the sum of its proper divisors (67276924).

88991132 is a wasteful number, since it uses less digits than its factorization.

88991132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76228 (or 76226 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 88991132 is about 9433.5111172882. The cubic root of 88991132 is about 446.4596800923.

The spelling of 88991132 in words is "eighty-eight million, nine hundred ninety-one thousand, one hundred thirty-two".