88777728 has 264 divisors, whose sum is σ = 299680800. Its totient is φ = 25878528.

The previous prime is 88777727. The next prime is 88777789. The reversal of 88777728 is 82777788.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (88777727) 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, 4672503 + ... + 4672521.

Almost surely, 2^88777728 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 88777728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149840400).

88777728 is an abundant number, since it is smaller than the sum of its proper divisors (210903072).

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

88777728 is a wasteful number, since it uses less digits than its factorization.

88777728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 37 counting only the distinct ones).

The product of its digits is 2458624, while the sum is 54.

The square root of 88777728 is about 9422.1933752179. The cubic root of 88777728 is about 446.1025188796.

The spelling of 88777728 in words is "eighty-eight million, seven hundred seventy-seven thousand, seven hundred twenty-eight".