90361697 has 2 divisors, whose sum is σ = 90361698. Its totient is φ = 90361696.

The previous prime is 90361669. The next prime is 90361703. The reversal of 90361697 is 79616309.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85303696 + 5058001 = 9236^2 + 2249^2 .

It is a cyclic number.

It is not a de Polignac number, because 90361697 - 2⁸ = 90361441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90361637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45180848 + 45180849.

It is an arithmetic number, because the mean of its divisors is an integer number (45180849).

Almost surely, 2^90361697 is an apocalyptic number.

It is an amenable number.

90361697 is a deficient number, since it is larger than the sum of its proper divisors (1).

90361697 is an equidigital number, since it uses as much as digits as its factorization.

90361697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 90361697 is about 9505.8769716423. The cubic root of 90361697 is about 448.7400095023.

The spelling of 90361697 in words is "ninety million, three hundred sixty-one thousand, six hundred ninety-seven".