97516537 has 2 divisors, whose sum is σ = 97516538. Its totient is φ = 97516536.

The previous prime is 97516519. The next prime is 97516547. The reversal of 97516537 is 73561579.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52142841 + 45373696 = 7221^2 + 6736^2 .

It is a cyclic number.

It is not a de Polignac number, because 97516537 - 2¹⁵ = 97483769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97516493 and 97516502.

It is not a weakly prime, because it can be changed into another prime (97516547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48758268 + 48758269.

It is an arithmetic number, because the mean of its divisors is an integer number (48758269).

Almost surely, 2^97516537 is an apocalyptic number.

It is an amenable number.

97516537 is a deficient number, since it is larger than the sum of its proper divisors (1).

97516537 is an equidigital number, since it uses as much as digits as its factorization.

97516537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 198450, while the sum is 43.

The square root of 97516537 is about 9875.0461771072. The cubic root of 97516537 is about 460.2842241588.

The spelling of 97516537 in words is "ninety-seven million, five hundred sixteen thousand, five hundred thirty-seven".