90696577 has 2 divisors, whose sum is σ = 90696578. Its totient is φ = 90696576.

The previous prime is 90696539. The next prime is 90696631. The reversal of 90696577 is 77569609.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86099841 + 4596736 = 9279^2 + 2144^2 .

It is a cyclic number.

It is not a de Polignac number, because 90696577 - 2¹⁹ = 90172289 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90696577.

It is not a weakly prime, because it can be changed into another prime (90696077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45348288 + 45348289.

It is an arithmetic number, because the mean of its divisors is an integer number (45348289).

Almost surely, 2^90696577 is an apocalyptic number.

It is an amenable number.

90696577 is a deficient number, since it is larger than the sum of its proper divisors (1).

90696577 is an equidigital number, since it uses as much as digits as its factorization.

90696577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 90696577 is about 9523.4750485314. The cubic root of 90696577 is about 449.2936688600.

The spelling of 90696577 in words is "ninety million, six hundred ninety-six thousand, five hundred seventy-seven".