90604313 has 2 divisors, whose sum is σ = 90604314. Its totient is φ = 90604312.

The previous prime is 90604279. The next prime is 90604321. The reversal of 90604313 is 31340609.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90022144 + 582169 = 9488^2 + 763^2 .

It is an emirp because it is prime and its reverse (31340609) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90604313 - 2⁶ = 90604249 is a prime.

It is not a weakly prime, because it can be changed into another prime (90604333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45302156 + 45302157.

It is an arithmetic number, because the mean of its divisors is an integer number (45302157).

Almost surely, 2^90604313 is an apocalyptic number.

It is an amenable number.

90604313 is a deficient number, since it is larger than the sum of its proper divisors (1).

90604313 is an equidigital number, since it uses as much as digits as its factorization.

90604313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 90604313 is about 9518.6297858463. The cubic root of 90604313 is about 449.1412643736.

The spelling of 90604313 in words is "ninety million, six hundred four thousand, three hundred thirteen".