2258779 has 2 divisors, whose sum is σ = 2258780. Its totient is φ = 2258778.

The previous prime is 2258743. The next prime is 2258783. The reversal of 2258779 is 9778522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2258779 - 2⁷ = 2258651 is a prime.

It is not a weakly prime, because it can be changed into another prime (2258279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1129389 + 1129390.

It is an arithmetic number, because the mean of its divisors is an integer number (1129390).

2^2258779 is an apocalyptic number.

2258779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2258779 is an equidigital number, since it uses as much as digits as its factorization.

2258779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 40.

The square root of 2258779 is about 1502.9234844130. The cubic root of 2258779 is about 131.2072743773.

The spelling of 2258779 in words is "two million, two hundred fifty-eight thousand, seven hundred seventy-nine".