88715609 has 2 divisors, whose sum is σ = 88715610. Its totient is φ = 88715608.

The previous prime is 88715581. The next prime is 88715633. The reversal of 88715609 is 90651788.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85618009 + 3097600 = 9253^2 + 1760^2 .

It is a cyclic number.

It is not a de Polignac number, because 88715609 - 2²⁰ = 87667033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88715609.

It is not a weakly prime, because it can be changed into another prime (88714609) 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 as a sum of consecutive naturals, namely, 44357804 + 44357805.

It is an arithmetic number, because the mean of its divisors is an integer number (44357805).

Almost surely, 2^88715609 is an apocalyptic number.

It is an amenable number.

88715609 is a deficient number, since it is larger than the sum of its proper divisors (1).

88715609 is an equidigital number, since it uses as much as digits as its factorization.

88715609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 88715609 is about 9418.8963790882. The cubic root of 88715609 is about 445.9984465751.

The spelling of 88715609 in words is "eighty-eight million, seven hundred fifteen thousand, six hundred nine".