97097631097 has 2 divisors, whose sum is σ = 97097631098. Its totient is φ = 97097631096.

The previous prime is 97097631079. The next prime is 97097631149. The reversal of 97097631097 is 79013679079.

Together with previous prime (97097631079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80874259456 + 16223371641 = 284384^2 + 127371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97097631097 is a prime.

It is not a weakly prime, because it can be changed into another prime (97097631797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48548815548 + 48548815549.

It is an arithmetic number, because the mean of its divisors is an integer number (48548815549).

Almost surely, 2^97097631097 is an apocalyptic number.

It is an amenable number.

97097631097 is a deficient number, since it is larger than the sum of its proper divisors (1).

97097631097 is an equidigital number, since it uses as much as digits as its factorization.

97097631097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500846, while the sum is 58.

The spelling of 97097631097 in words is "ninety-seven billion, ninety-seven million, six hundred thirty-one thousand, ninety-seven".