88721163 has 40 divisors (see below), whose sum is σ = 138695040. Its totient is φ = 56453760.

The previous prime is 88721137. The next prime is 88721167. The reversal of 88721163 is 36112788.

It is not a de Polignac number, because 88721163 - 2²⁵ = 55166731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88721167) 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 39 ways as a sum of consecutive naturals, for example, 223281 + ... + 223677.

It is an arithmetic number, because the mean of its divisors is an integer number (3467376).

Almost surely, 2^88721163 is an apocalyptic number.

88721163 is a deficient number, since it is larger than the sum of its proper divisors (49973877).

88721163 is a wasteful number, since it uses less digits than its factorization.

88721163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 520 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 88721163 is about 9419.1912073171. The cubic root of 88721163 is about 446.0077535569.

The spelling of 88721163 in words is "eighty-eight million, seven hundred twenty-one thousand, one hundred sixty-three".