97657271 has 2 divisors, whose sum is σ = 97657272. Its totient is φ = 97657270.

The previous prime is 97657253. The next prime is 97657277. The reversal of 97657271 is 17275679.

It is a strong prime.

It is an emirp because it is prime and its reverse (17275679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97657271 - 2¹⁸ = 97395127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97657277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48828635 + 48828636.

It is an arithmetic number, because the mean of its divisors is an integer number (48828636).

Almost surely, 2^97657271 is an apocalyptic number.

97657271 is a deficient number, since it is larger than the sum of its proper divisors (1).

97657271 is an equidigital number, since it uses as much as digits as its factorization.

97657271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185220, while the sum is 44.

The square root of 97657271 is about 9882.1693468590. The cubic root of 97657271 is about 460.5055421868.

The spelling of 97657271 in words is "ninety-seven million, six hundred fifty-seven thousand, two hundred seventy-one".