2258287 has 2 divisors, whose sum is σ = 2258288. Its totient is φ = 2258286.

The previous prime is 2258279. The next prime is 2258299. The reversal of 2258287 is 7828522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2258287 - 2³ = 2258279 is a prime.

2258287 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2258227) 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, 1129143 + 1129144.

It is an arithmetic number, because the mean of its divisors is an integer number (1129144).

2^2258287 is an apocalyptic number.

2258287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2258287 is an equidigital number, since it uses as much as digits as its factorization.

2258287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 34.

The square root of 2258287 is about 1502.7597945114. The cubic root of 2258287 is about 131.1977473029.

The spelling of 2258287 in words is "two million, two hundred fifty-eight thousand, two hundred eighty-seven".