88517880 has 128 divisors (see below), whose sum is σ = 321926400. Its totient is φ = 21456000.

The previous prime is 88517867. The next prime is 88517881. The reversal of 88517880 is 8871588.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88517881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8155 + ... + 15605.

It is an arithmetic number, because the mean of its divisors is an integer number (2515050).

Almost surely, 2^88517880 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 88517880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160963200).

88517880 is an abundant number, since it is smaller than the sum of its proper divisors (233408520).

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

88517880 is a wasteful number, since it uses less digits than its factorization.

88517880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7482 (or 7472 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 45.

The square root of 88517880 is about 9408.3941243976. The cubic root of 88517880 is about 445.6668535747. Note that the first 3 decimals are identical.

The spelling of 88517880 in words is "eighty-eight million, five hundred seventeen thousand, eight hundred eighty".