88297728 has 72 divisors (see below), whose sum is σ = 248861088. Its totient is φ = 27697152.

The previous prime is 88297717. The next prime is 88297751. The reversal of 88297728 is 82779288.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9675 + ... + 16437.

It is an arithmetic number, because the mean of its divisors is an integer number (3456404).

Almost surely, 2^88297728 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 88297728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124430544).

88297728 is an abundant number, since it is smaller than the sum of its proper divisors (160563360).

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

88297728 is a wasteful number, since it uses less digits than its factorization.

88297728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6799 (or 6785 counting only the distinct ones).

The product of its digits is 903168, while the sum is 51.

The square root of 88297728 is about 9396.6870757730. The cubic root of 88297728 is about 445.2970755458.

The spelling of 88297728 in words is "eighty-eight million, two hundred ninety-seven thousand, seven hundred twenty-eight".