97351691 has 2 divisors, whose sum is σ = 97351692. Its totient is φ = 97351690.

The previous prime is 97351627. The next prime is 97351693. The reversal of 97351691 is 19615379.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97351691 - 2⁶ = 97351627 is a prime.

Together with 97351693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97351693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48675845 + 48675846.

It is an arithmetic number, because the mean of its divisors is an integer number (48675846).

Almost surely, 2^97351691 is an apocalyptic number.

97351691 is a deficient number, since it is larger than the sum of its proper divisors (1).

97351691 is an equidigital number, since it uses as much as digits as its factorization.

97351691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 41.

The square root of 97351691 is about 9866.6960528842. The cubic root of 97351691 is about 460.0247166933.

The spelling of 97351691 in words is "ninety-seven million, three hundred fifty-one thousand, six hundred ninety-one".