88399764 has 72 divisors (see below), whose sum is σ = 234666432. Its totient is φ = 28005120.

The previous prime is 88399721. The next prime is 88399769. The reversal of 88399764 is 46799388.

It is a self number, because there is not a number n which added to its sum of digits gives 88399764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88399769) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199327 + ... + 199769.

It is an arithmetic number, because the mean of its divisors is an integer number (3259256).

Almost surely, 2^88399764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88399764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117333216).

88399764 is an abundant number, since it is smaller than the sum of its proper divisors (146266668).

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

88399764 is a wasteful number, since it uses less digits than its factorization.

88399764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 712 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 88399764 is about 9402.1148684751. The cubic root of 88399764 is about 445.4685365136.

The spelling of 88399764 in words is "eighty-eight million, three hundred ninety-nine thousand, seven hundred sixty-four".