97961671 has 2 divisors, whose sum is σ = 97961672. Its totient is φ = 97961670.

The previous prime is 97961657. The next prime is 97961711. The reversal of 97961671 is 17616979.

It is a weak prime.

It is an emirp because it is prime and its reverse (17616979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97961671 - 2⁵ = 97961639 is a prime.

It is a super-2 number, since 2×97961671² = 19192977970224482, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97961641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48980835 + 48980836.

It is an arithmetic number, because the mean of its divisors is an integer number (48980836).

Almost surely, 2^97961671 is an apocalyptic number.

97961671 is a deficient number, since it is larger than the sum of its proper divisors (1).

97961671 is an equidigital number, since it uses as much as digits as its factorization.

97961671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 46.

The square root of 97961671 is about 9897.5588404414. The cubic root of 97961671 is about 460.9835147651.

The spelling of 97961671 in words is "ninety-seven million, nine hundred sixty-one thousand, six hundred seventy-one".