97855930597 has 4 divisors (see below), whose sum is σ = 100500685516. Its totient is φ = 95211175680.

The previous prime is 97855930583. The next prime is 97855930633. The reversal of 97855930597 is 79503955879.

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 88203654081 + 9652276516 = 296991^2 + 98246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97855930597 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 (97855930537) 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, 1322377404 + ... + 1322377477.

It is an arithmetic number, because the mean of its divisors is an integer number (25125171379).

Almost surely, 2^97855930597 is an apocalyptic number.

It is an amenable number.

97855930597 is a deficient number, since it is larger than the sum of its proper divisors (2644754919).

97855930597 is a wasteful number, since it uses less digits than its factorization.

97855930597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644754918.

The product of its (nonzero) digits is 107163000, while the sum is 67.

The spelling of 97855930597 in words is "ninety-seven billion, eight hundred fifty-five million, nine hundred thirty thousand, five hundred ninety-seven".