88664880 has 80 divisors (see below), whose sum is σ = 275768064. Its totient is φ = 23566080.

The previous prime is 88664869. The next prime is 88664881. The reversal of 88664880 is 8846688.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×88664880² = 15722921890828800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (88664881) 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, 136717 + ... + 137363.

Almost surely, 2^88664880 is an apocalyptic number.

88664880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88664880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137884032).

88664880 is an abundant number, since it is smaller than the sum of its proper divisors (187103184).

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

88664880 is a wasteful number, since it uses less digits than its factorization.

88664880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 88664880 is about 9416.2030564342. The cubic root of 88664880 is about 445.9134206919.

The spelling of 88664880 in words is "eighty-eight million, six hundred sixty-four thousand, eight hundred eighty".