88731144 has 24 divisors (see below), whose sum is σ = 240313710. Its totient is φ = 29577024.

The previous prime is 88731127. The next prime is 88731157. The reversal of 88731144 is 44113788.

It can be written as a sum of positive squares in only one way, i.e., 83722500 + 5008644 = 9150^2 + 2238^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 88731099 and 88731108.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616117 + ... + 616260.

Almost surely, 2^88731144 is an apocalyptic number.

It is an amenable number.

88731144 is an abundant number, since it is smaller than the sum of its proper divisors (151582566).

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

88731144 is a wasteful number, since it uses less digits than its factorization.

88731144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232389 (or 1232382 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 88731144 is about 9419.7210149770. The cubic root of 88731144 is about 446.0244780013.

The spelling of 88731144 in words is "eighty-eight million, seven hundred thirty-one thousand, one hundred forty-four".