290830949 has 2 divisors, whose sum is σ = 290830950. Its totient is φ = 290830948.

The previous prime is 290830927. The next prime is 290830961. The reversal of 290830949 is 949038092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178089025 + 112741924 = 13345^2 + 10618^2 .

It is a cyclic number.

It is not a de Polignac number, because 290830949 - 2²⁸ = 22395493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290830909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145415474 + 145415475.

It is an arithmetic number, because the mean of its divisors is an integer number (145415475).

Almost surely, 2^290830949 is an apocalyptic number.

It is an amenable number.

290830949 is a deficient number, since it is larger than the sum of its proper divisors (1).

290830949 is an equidigital number, since it uses as much as digits as its factorization.

290830949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 290830949 is about 17053.7664168359. The cubic root of 290830949 is about 662.5421918780.

The spelling of 290830949 in words is "two hundred ninety million, eight hundred thirty thousand, nine hundred forty-nine".