88921657 has 8 divisors (see below), whose sum is σ = 101223360. Its totient is φ = 77322960.

The previous prime is 88921649. The next prime is 88921667. The reversal of 88921657 is 75612988.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 88921657 - 2³ = 88921649 is a prime.

It is a super-2 number, since 2×88921657² = 15814122167251298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88921667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175482 + ... + 175987.

It is an arithmetic number, because the mean of its divisors is an integer number (12652920).

Almost surely, 2^88921657 is an apocalyptic number.

It is an amenable number.

88921657 is a deficient number, since it is larger than the sum of its proper divisors (12301703).

88921657 is a wasteful number, since it uses less digits than its factorization.

88921657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351503.

The product of its digits is 241920, while the sum is 46.

The square root of 88921657 is about 9429.8280472127. The cubic root of 88921657 is about 446.3434667839.

The spelling of 88921657 in words is "eighty-eight million, nine hundred twenty-one thousand, six hundred fifty-seven".