290999 has 2 divisors, whose sum is σ = 291000. Its totient is φ = 290998.

The previous prime is 290993. The next prime is 291007. The reversal of 290999 is 999092.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290999 is a prime.

It is a Chen prime.

290999 is a modest number, since divided by 999 gives 290 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145499 + 145500.

It is an arithmetic number, because the mean of its divisors is an integer number (145500).

2²⁹⁰⁹⁹⁹ is an apocalyptic number.

290999 is a deficient number, since it is larger than the sum of its proper divisors (1).

290999 is an equidigital number, since it uses as much as digits as its factorization.

290999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 290999 is about 539.4432314897. The cubic root of 290999 is about 66.2669779674.

The spelling of 290999 in words is "two hundred ninety thousand, nine hundred ninety-nine".