290879 has 2 divisors, whose sum is σ = 290880. Its totient is φ = 290878.

The previous prime is 290869. The next prime is 290897. The reversal of 290879 is 978092.

Together with next prime (290897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 290879 - 2⁸ = 290623 is a prime.

It is a super-3 number, since 3×290879³ = 73834333730464317, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 290879.

It is not a weakly prime, because it can be changed into another prime (290839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145439 + 145440.

It is an arithmetic number, because the mean of its divisors is an integer number (145440).

2²⁹⁰⁸⁷⁹ is an apocalyptic number.

290879 is a deficient number, since it is larger than the sum of its proper divisors (1).

290879 is an equidigital number, since it uses as much as digits as its factorization.

290879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 290879 is about 539.3319942299. The cubic root of 290879 is about 66.2578678208.

The spelling of 290879 in words is "two hundred ninety thousand, eight hundred seventy-nine".