88981660 has 12 divisors (see below), whose sum is σ = 186861528. Its totient is φ = 35592656.

The previous prime is 88981643. The next prime is 88981667. The reversal of 88981660 is 6618988.

It is a self number, because there is not a number n which added to its sum of digits gives 88981660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88981667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2224522 + ... + 2224561.

It is an arithmetic number, because the mean of its divisors is an integer number (15571794).

Almost surely, 2^88981660 is an apocalyptic number.

It is an amenable number.

88981660 is an abundant number, since it is smaller than the sum of its proper divisors (97879868).

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

88981660 is a wasteful number, since it uses less digits than its factorization.

88981660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449092 (or 4449090 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 88981660 is about 9433.0090639202. The cubic root of 88981660 is about 446.4438395022.

The spelling of 88981660 in words is "eighty-eight million, nine hundred eighty-one thousand, six hundred sixty".