290791 has 2 divisors, whose sum is σ = 290792. Its totient is φ = 290790.

The previous prime is 290767. The next prime is 290803. The reversal of 290791 is 197092.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 290791 - 2⁷ = 290663 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145395 + 145396.

It is an arithmetic number, because the mean of its divisors is an integer number (145396).

2²⁹⁰⁷⁹¹ is an apocalyptic number.

290791 is a deficient number, since it is larger than the sum of its proper divisors (1).

290791 is an equidigital number, since it uses as much as digits as its factorization.

290791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 290791 is about 539.2504056559. The cubic root of 290791 is about 66.2511854540.

It can be divided in two parts, 290 and 791, that added together give a triangular number (1081 = T₄₆).

The spelling of 290791 in words is "two hundred ninety thousand, seven hundred ninety-one".