88431738 has 32 divisors (see below), whose sum is σ = 187353600. Its totient is φ = 27748656.

The previous prime is 88431667. The next prime is 88431743. The reversal of 88431738 is 83713488.

It is a self number, because there is not a number n which added to its sum of digits gives 88431738.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16203 + ... + 20961.

It is an arithmetic number, because the mean of its divisors is an integer number (5854800).

Almost surely, 2^88431738 is an apocalyptic number.

88431738 is an abundant number, since it is smaller than the sum of its proper divisors (98921862).

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

88431738 is a wasteful number, since it uses less digits than its factorization.

88431738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4946.

The product of its digits is 129024, while the sum is 42.

The square root of 88431738 is about 9403.8150768717. The cubic root of 88431738 is about 445.5222383691.

The spelling of 88431738 in words is "eighty-eight million, four hundred thirty-one thousand, seven hundred thirty-eight".