290727361 has 2 divisors, whose sum is σ = 290727362. Its totient is φ = 290727360.

The previous prime is 290727329. The next prime is 290727401. The reversal of 290727361 is 163727092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290054961 + 672400 = 17031^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 290727361 - 2⁵ = 290727329 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 290727361.

It is not a weakly prime, because it can be changed into another prime (290787361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145363680 + 145363681.

It is an arithmetic number, because the mean of its divisors is an integer number (145363681).

Almost surely, 2^290727361 is an apocalyptic number.

It is an amenable number.

290727361 is a deficient number, since it is larger than the sum of its proper divisors (1).

290727361 is an equidigital number, since it uses as much as digits as its factorization.

290727361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 290727361 is about 17050.7290459968. The cubic root of 290727361 is about 662.4635212381.

The spelling of 290727361 in words is "two hundred ninety million, seven hundred twenty-seven thousand, three hundred sixty-one".