88239215597 has 4 divisors (see below), whose sum is σ = 95026847580. Its totient is φ = 81451583616.

The previous prime is 88239215573. The next prime is 88239215609. The reversal of 88239215597 is 79551293288.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52262989321 + 35976226276 = 228611^2 + 189674^2 .

It is a de Polignac number, because none of the positive numbers 2^k-88239215597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88239215567) 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, 3393815972 + ... + 3393815997.

It is an arithmetic number, because the mean of its divisors is an integer number (23756711895).

Almost surely, 2^88239215597 is an apocalyptic number.

It is an amenable number.

88239215597 is a deficient number, since it is larger than the sum of its proper divisors (6787631983).

88239215597 is a wasteful number, since it uses less digits than its factorization.

88239215597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787631982.

The product of its digits is 10886400, while the sum is 59.

The spelling of 88239215597 in words is "eighty-eight billion, two hundred thirty-nine million, two hundred fifteen thousand, five hundred ninety-seven".