2256697 has 2 divisors, whose sum is σ = 2256698. Its totient is φ = 2256696.

The previous prime is 2256689. The next prime is 2256703. The reversal of 2256697 is 7966522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1430416 + 826281 = 1196^2 + 909^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256697 - 2³ = 2256689 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 5⁵ + 6² + 6⁵ + 9³ + 7⁵ .

It is not a weakly prime, because it can be changed into another prime (2256637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128348 + 1128349.

It is an arithmetic number, because the mean of its divisors is an integer number (1128349).

2^2256697 is an apocalyptic number.

It is an amenable number.

2256697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256697 is an equidigital number, since it uses as much as digits as its factorization.

2256697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 2256697 is about 1502.2306746968. The cubic root of 2256697 is about 131.1669491220.

The spelling of 2256697 in words is "two million, two hundred fifty-six thousand, six hundred ninety-seven".