290325493 has 2 divisors, whose sum is σ = 290325494. Its totient is φ = 290325492.

The previous prime is 290325487. The next prime is 290325523. The reversal of 290325493 is 394523092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242674084 + 47651409 = 15578^2 + 6903^2 .

It is a cyclic number.

It is not a de Polignac number, because 290325493 - 2⁹ = 290324981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290325433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145162746 + 145162747.

It is an arithmetic number, because the mean of its divisors is an integer number (145162747).

Almost surely, 2^290325493 is an apocalyptic number.

It is an amenable number.

290325493 is a deficient number, since it is larger than the sum of its proper divisors (1).

290325493 is an equidigital number, since it uses as much as digits as its factorization.

290325493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 290325493 is about 17038.9404893614. The cubic root of 290325493 is about 662.1581427454.

The spelling of 290325493 in words is "two hundred ninety million, three hundred twenty-five thousand, four hundred ninety-three".