88921 has 4 divisors (see below), whose sum is σ = 101632. Its totient is φ = 76212.

The previous prime is 88919. The next prime is 88937. The reversal of 88921 is 12988.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88921 - 2¹ = 88919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88921.

It is not an unprimeable number, because it can be changed into a prime (88951) 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, 6345 + ... + 6358.

It is an arithmetic number, because the mean of its divisors is an integer number (25408).

2⁸⁸⁹²¹ is an apocalyptic number.

It is an amenable number.

88921 is a deficient number, since it is larger than the sum of its proper divisors (12711).

88921 is a wasteful number, since it uses less digits than its factorization.

88921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12710.

The product of its digits is 1152, while the sum is 28.

The square root of 88921 is about 298.1962441078. The cubic root of 88921 is about 44.6342367508.

The spelling of 88921 in words is "eighty-eight thousand, nine hundred twenty-one".