2256847 has 2 divisors, whose sum is σ = 2256848. Its totient is φ = 2256846.

The previous prime is 2256841. The next prime is 2256851. The reversal of 2256847 is 7486522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2256847 - 2¹¹ = 2254799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128423 + 1128424.

It is an arithmetic number, because the mean of its divisors is an integer number (1128424).

2^2256847 is an apocalyptic number.

2256847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256847 is an equidigital number, since it uses as much as digits as its factorization.

2256847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 2256847 is about 1502.2805996218. The cubic root of 2256847 is about 131.1698552286.

It can be divided in two parts, 22568 and 47, that multiplied together give a triangular number (1060696 = T₁₄₅₆).

The spelling of 2256847 in words is "two million, two hundred fifty-six thousand, eight hundred forty-seven".