290790613 has 2 divisors, whose sum is σ = 290790614. Its totient is φ = 290790612.

The previous prime is 290790601. The next prime is 290790637. The reversal of 290790613 is 316097092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221950404 + 68840209 = 14898^2 + 8297^2 .

It is a cyclic number.

It is not a de Polignac number, because 290790613 - 2⁵ = 290790581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290797613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145395306 + 145395307.

It is an arithmetic number, because the mean of its divisors is an integer number (145395307).

Almost surely, 2^290790613 is an apocalyptic number.

It is an amenable number.

290790613 is a deficient number, since it is larger than the sum of its proper divisors (1).

290790613 is an equidigital number, since it uses as much as digits as its factorization.

290790613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 290790613 is about 17052.5837631721. The cubic root of 290790613 is about 662.5115606384.

The spelling of 290790613 in words is "two hundred ninety million, seven hundred ninety thousand, six hundred thirteen".