89796813597 has 20 divisors (see below), whose sum is σ = 134155630620. Its totient is φ = 59857977024.

The previous prime is 89796813487. The next prime is 89796813629. The reversal of 89796813597 is 79531869798.

It can be written as a sum of positive squares in 2 ways, for example, as 26930779236 + 62866034361 = 164106^2 + 250731^2 .

It is not a de Polignac number, because 89796813597 - 2²³ = 89788424989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89796815597) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 748423 + ... + 860075.

It is an arithmetic number, because the mean of its divisors is an integer number (6707781531).

Almost surely, 2^89796813597 is an apocalyptic number.

It is an amenable number.

89796813597 is a deficient number, since it is larger than the sum of its proper divisors (44358817023).

89796813597 is a wasteful number, since it uses less digits than its factorization.

89796813597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121594 (or 121585 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 72.

The spelling of 89796813597 in words is "eighty-nine billion, seven hundred ninety-six million, eight hundred thirteen thousand, five hundred ninety-seven".