90302413 has 2 divisors, whose sum is σ = 90302414. Its totient is φ = 90302412.

The previous prime is 90302371. The next prime is 90302447. The reversal of 90302413 is 31420309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87553449 + 2748964 = 9357^2 + 1658^2 .

It is a cyclic number.

It is not a de Polignac number, because 90302413 - 2²⁵ = 56747981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90372413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45151206 + 45151207.

It is an arithmetic number, because the mean of its divisors is an integer number (45151207).

Almost surely, 2^90302413 is an apocalyptic number.

It is an amenable number.

90302413 is a deficient number, since it is larger than the sum of its proper divisors (1).

90302413 is an equidigital number, since it uses as much as digits as its factorization.

90302413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 90302413 is about 9502.7581785501. The cubic root of 90302413 is about 448.6418524159.

The spelling of 90302413 in words is "ninety million, three hundred two thousand, four hundred thirteen".