2798459 has 2 divisors, whose sum is σ = 2798460. Its totient is φ = 2798458.

The previous prime is 2798449. The next prime is 2798461. The reversal of 2798459 is 9548972.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2798459 is a prime.

Together with 2798461, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2798449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399229 + 1399230.

It is an arithmetic number, because the mean of its divisors is an integer number (1399230).

2^2798459 is an apocalyptic number.

2798459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2798459 is an equidigital number, since it uses as much as digits as its factorization.

2798459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 2798459 is about 1672.8595278744. The cubic root of 2798459 is about 140.9201130217.

The spelling of 2798459 in words is "two million, seven hundred ninety-eight thousand, four hundred fifty-nine".