97298288639 has 4 divisors (see below), whose sum is σ = 98064417024. Its totient is φ = 96532160256.

The previous prime is 97298288627. The next prime is 97298288669. The reversal of 97298288639 is 93688289279.

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

It is a cyclic number.

It is not a de Polignac number, because 97298288639 - 2⁴ = 97298288623 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 (97298288669) 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, 383064002 + ... + 383064255.

It is an arithmetic number, because the mean of its divisors is an integer number (24516104256).

Almost surely, 2^97298288639 is an apocalyptic number.

97298288639 is a deficient number, since it is larger than the sum of its proper divisors (766128385).

97298288639 is a wasteful number, since it uses less digits than its factorization.

97298288639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766128384.

The product of its digits is 188116992, while the sum is 71.

The spelling of 97298288639 in words is "ninety-seven billion, two hundred ninety-eight million, two hundred eighty-eight thousand, six hundred thirty-nine".