88891992 has 80 divisors (see below), whose sum is σ = 284562960. Its totient is φ = 25396416.

The previous prime is 88891991. The next prime is 88892003. The reversal of 88891992 is 29919888.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88891991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5263 + ... + 14334.

It is an arithmetic number, because the mean of its divisors is an integer number (3557037).

Almost surely, 2^88891992 is an apocalyptic number.

It is an amenable number.

88891992 is an abundant number, since it is smaller than the sum of its proper divisors (195670968).

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

88891992 is a wasteful number, since it uses less digits than its factorization.

88891992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19622 (or 19609 counting only the distinct ones).

The product of its digits is 746496, while the sum is 54.

The square root of 88891992 is about 9428.2549817026. The cubic root of 88891992 is about 446.2938266397.

The spelling of 88891992 in words is "eighty-eight million, eight hundred ninety-one thousand, nine hundred ninety-two".