290382689 has 2 divisors, whose sum is σ = 290382690. Its totient is φ = 290382688.

The previous prime is 290382683. The next prime is 290382727. The reversal of 290382689 is 986283092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249640000 + 40742689 = 15800^2 + 6383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290382689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (290382683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145191344 + 145191345.

It is an arithmetic number, because the mean of its divisors is an integer number (145191345).

Almost surely, 2^290382689 is an apocalyptic number.

It is an amenable number.

290382689 is a deficient number, since it is larger than the sum of its proper divisors (1).

290382689 is an equidigital number, since it uses as much as digits as its factorization.

290382689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 290382689 is about 17040.6187974498. The cubic root of 290382689 is about 662.2016230359.

The spelling of 290382689 in words is "two hundred ninety million, three hundred eighty-two thousand, six hundred eighty-nine".