90566297 has 2 divisors, whose sum is σ = 90566298. Its totient is φ = 90566296.

The previous prime is 90566291. The next prime is 90566323. The reversal of 90566297 is 79266509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63744256 + 26822041 = 7984^2 + 5179^2 .

It is a cyclic number.

It is not a de Polignac number, because 90566297 - 2¹⁴ = 90549913 is a prime.

It is not a weakly prime, because it can be changed into another prime (90566291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45283148 + 45283149.

It is an arithmetic number, because the mean of its divisors is an integer number (45283149).

Almost surely, 2^90566297 is an apocalyptic number.

It is an amenable number.

90566297 is a deficient number, since it is larger than the sum of its proper divisors (1).

90566297 is an equidigital number, since it uses as much as digits as its factorization.

90566297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 90566297 is about 9516.6326502603. The cubic root of 90566297 is about 449.0784382882.

The spelling of 90566297 in words is "ninety million, five hundred sixty-six thousand, two hundred ninety-seven".