290834813 has 2 divisors, whose sum is σ = 290834814. Its totient is φ = 290834812.

The previous prime is 290834801. The next prime is 290834849. The reversal of 290834813 is 318438092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 273009529 + 17825284 = 16523^2 + 4222^2 .

It is a cyclic number.

It is not a de Polignac number, because 290834813 - 2⁶ = 290834749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290834893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145417406 + 145417407.

It is an arithmetic number, because the mean of its divisors is an integer number (145417407).

Almost surely, 2^290834813 is an apocalyptic number.

It is an amenable number.

290834813 is a deficient number, since it is larger than the sum of its proper divisors (1).

290834813 is an equidigital number, since it uses as much as digits as its factorization.

290834813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 290834813 is about 17053.8797052166. The cubic root of 290834813 is about 662.5451260587.

The spelling of 290834813 in words is "two hundred ninety million, eight hundred thirty-four thousand, eight hundred thirteen".