88808921 has 4 divisors (see below), whose sum is σ = 89878992. Its totient is φ = 87738852.

The previous prime is 88808903. The next prime is 88808927. The reversal of 88808921 is 12980888.

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 88808921 - 2⁶ = 88808857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88808927) 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, 534911 + ... + 535076.

It is an arithmetic number, because the mean of its divisors is an integer number (22469748).

Almost surely, 2^88808921 is an apocalyptic number.

It is an amenable number.

88808921 is a deficient number, since it is larger than the sum of its proper divisors (1070071).

88808921 is a wasteful number, since it uses less digits than its factorization.

88808921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070070.

The product of its (nonzero) digits is 73728, while the sum is 44.

The square root of 88808921 is about 9423.8485238251. The cubic root of 88808921 is about 446.1547603849.

The spelling of 88808921 in words is "eighty-eight million, eight hundred eight thousand, nine hundred twenty-one".