88257720 has 64 divisors (see below), whose sum is σ = 269788320. Its totient is φ = 23089664.

The previous prime is 88257703. The next prime is 88257721. The reversal of 88257720 is 2775288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88257721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 579 + ... + 13298.

Almost surely, 2^88257720 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 88257720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134894160).

88257720 is an abundant number, since it is smaller than the sum of its proper divisors (181530600).

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

88257720 is a wasteful number, since it uses less digits than its factorization.

88257720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13944 (or 13940 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 88257720 is about 9394.5579991823. The cubic root of 88257720 is about 445.2298101803.

The spelling of 88257720 in words is "eighty-eight million, two hundred fifty-seven thousand, seven hundred twenty".