2805899 has 2 divisors, whose sum is σ = 2805900. Its totient is φ = 2805898.

The previous prime is 2805851. The next prime is 2805911. The reversal of 2805899 is 9985082.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2805899 - 2⁸ = 2805643 is a prime.

It is not a weakly prime, because it can be changed into another prime (2805809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402949 + 1402950.

It is an arithmetic number, because the mean of its divisors is an integer number (1402950).

2^2805899 is an apocalyptic number.

2805899 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805899 is an equidigital number, since it uses as much as digits as its factorization.

2805899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 2805899 is about 1675.0817890479. The cubic root of 2805899 is about 141.0448862006.

The spelling of 2805899 in words is "two million, eight hundred five thousand, eight hundred ninety-nine".