97657711 has 2 divisors, whose sum is σ = 97657712. Its totient is φ = 97657710.

The previous prime is 97657709. The next prime is 97657771. The reversal of 97657711 is 11775679.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97657711 - 2¹ = 97657709 is a prime.

Together with 97657709, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97657771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48828855 + 48828856.

It is an arithmetic number, because the mean of its divisors is an integer number (48828856).

Almost surely, 2^97657711 is an apocalyptic number.

97657711 is a deficient number, since it is larger than the sum of its proper divisors (1).

97657711 is an equidigital number, since it uses as much as digits as its factorization.

97657711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92610, while the sum is 43.

The square root of 97657711 is about 9882.1916091523. The cubic root of 97657711 is about 460.5062337965.

The spelling of 97657711 in words is "ninety-seven million, six hundred fifty-seven thousand, seven hundred eleven".