88421715 has 12 divisors (see below), whose sum is σ = 153264384. Its totient is φ = 47158224.

The previous prime is 88421713. The next prime is 88421737. The reversal of 88421715 is 51712488.

It is not a de Polignac number, because 88421715 - 2¹ = 88421713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88421715.

It is not an unprimeable number, because it can be changed into a prime (88421713) 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 11 ways as a sum of consecutive naturals, for example, 982419 + ... + 982508.

It is an arithmetic number, because the mean of its divisors is an integer number (12772032).

Almost surely, 2^88421715 is an apocalyptic number.

88421715 is a deficient number, since it is larger than the sum of its proper divisors (64842669).

88421715 is a wasteful number, since it uses less digits than its factorization.

88421715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964938 (or 1964935 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 88421715 is about 9403.2821397638. The cubic root of 88421715 is about 445.5054056564.

The spelling of 88421715 in words is "eighty-eight million, four hundred twenty-one thousand, seven hundred fifteen".