290039 has 2 divisors, whose sum is σ = 290040. Its totient is φ = 290038.

The previous prime is 290033. The next prime is 290041. The reversal of 290039 is 930092.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 290039 - 2⁴ = 290023 is a prime.

It is a Sophie Germain prime.

Together with 290041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 289996 and 290023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145019 + 145020.

It is an arithmetic number, because the mean of its divisors is an integer number (145020).

2²⁹⁰⁰³⁹ is an apocalyptic number.

290039 is a deficient number, since it is larger than the sum of its proper divisors (1).

290039 is an equidigital number, since it uses as much as digits as its factorization.

290039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 290039 is about 538.5526900871. The cubic root of 290039 is about 66.1940265327.

The spelling of 290039 in words is "two hundred ninety thousand, thirty-nine".