88397172 has 18 divisors (see below), whose sum is σ = 223448498. Its totient is φ = 29465712.

The previous prime is 88397149. The next prime is 88397173. The reversal of 88397172 is 27179388.

It can be written as a sum of positive squares in only one way, i.e., 62631396 + 25765776 = 7914^2 + 5076^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88397173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1227703 + ... + 1227774.

Almost surely, 2^88397172 is an apocalyptic number.

It is an amenable number.

88397172 is an abundant number, since it is smaller than the sum of its proper divisors (135051326).

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

88397172 is a wasteful number, since it uses less digits than its factorization.

88397172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455487 (or 2455482 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 88397172 is about 9401.9770261366. The cubic root of 88397172 is about 445.4641825588.

The spelling of 88397172 in words is "eighty-eight million, three hundred ninety-seven thousand, one hundred seventy-two".