88710921 has 24 divisors (see below), whose sum is σ = 141368136. Its totient is φ = 53256960.

The previous prime is 88710911. The next prime is 88710929. The reversal of 88710921 is 12901788.

It can be written as a sum of positive squares in 4 ways, for example, as 1550025 + 87160896 = 1245^2 + 9336^2 .

It is not a de Polignac number, because 88710921 - 2⁵ = 88710889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88710929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4450 + ... + 14043.

It is an arithmetic number, because the mean of its divisors is an integer number (5890339).

Almost surely, 2^88710921 is an apocalyptic number.

It is an amenable number.

88710921 is a deficient number, since it is larger than the sum of its proper divisors (52657215).

88710921 is a wasteful number, since it uses less digits than its factorization.

88710921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18553 (or 18550 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 88710921 is about 9418.6475143728. The cubic root of 88710921 is about 445.9905904696.

The spelling of 88710921 in words is "eighty-eight million, seven hundred ten thousand, nine hundred twenty-one".