97596987231 has 4 divisors (see below), whose sum is σ = 130129316312. Its totient is φ = 65064658152.

The previous prime is 97596987209. The next prime is 97596987253. The reversal of 97596987231 is 13278969579.

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

It is an interprime number because it is at equal distance from previous prime (97596987209) and next prime (97596987253).

It is not a de Polignac number, because 97596987231 - 2¹¹ = 97596985183 is a prime.

It is a super-2 number, since 2×97596987231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97596987331) 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, 16266164536 + ... + 16266164541.

It is an arithmetic number, because the mean of its divisors is an integer number (32532329078).

Almost surely, 2^97596987231 is an apocalyptic number.

97596987231 is a deficient number, since it is larger than the sum of its proper divisors (32532329081).

97596987231 is a wasteful number, since it uses less digits than its factorization.

97596987231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32532329080.

The product of its digits is 51438240, while the sum is 66.

The spelling of 97596987231 in words is "ninety-seven billion, five hundred ninety-six million, nine hundred eighty-seven thousand, two hundred thirty-one".