2256897 has 4 divisors (see below), whose sum is σ = 3009200. Its totient is φ = 1504596.

The previous prime is 2256887. The next prime is 2256901. The reversal of 2256897 is 7986522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2256897 - 2¹¹ = 2254849 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 2¹⁹ + 5⁶ + 6⁸ + 8⁴ + 9² + 7⁵ .

It is a D-number.

It is a Duffinian number.

2256897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2256827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376147 + ... + 376152.

It is an arithmetic number, because the mean of its divisors is an integer number (752300).

It is a Proth number, since it is equal to 551 ⋅ 2¹² + 1 and 551 < 2¹².

2^2256897 is an apocalyptic number.

It is an amenable number.

2256897 is a deficient number, since it is larger than the sum of its proper divisors (752303).

2256897 is an equidigital number, since it uses as much as digits as its factorization.

2256897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752302.

The product of its digits is 60480, while the sum is 39.

The square root of 2256897 is about 1502.2972408948. The cubic root of 2256897 is about 131.1708239022.

The spelling of 2256897 in words is "two million, two hundred fifty-six thousand, eight hundred ninety-seven".