97083786257 has 2 divisors, whose sum is σ = 97083786258. Its totient is φ = 97083786256.

The previous prime is 97083786229. The next prime is 97083786281. The reversal of 97083786257 is 75268738079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81549653761 + 15534132496 = 285569^2 + 124636^2 .

It is a cyclic number.

It is not a de Polignac number, because 97083786257 - 2⁸ = 97083786001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97083786257.

It is not a weakly prime, because it can be changed into another prime (97083786227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48541893128 + 48541893129.

It is an arithmetic number, because the mean of its divisors is an integer number (48541893129).

Almost surely, 2^97083786257 is an apocalyptic number.

It is an amenable number.

97083786257 is a deficient number, since it is larger than the sum of its proper divisors (1).

97083786257 is an equidigital number, since it uses as much as digits as its factorization.

97083786257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35562240, while the sum is 62.

The spelling of 97083786257 in words is "ninety-seven billion, eighty-three million, seven hundred eighty-six thousand, two hundred fifty-seven".