2265397 has 4 divisors (see below), whose sum is σ = 2297376. Its totient is φ = 2233420.

The previous prime is 2265391. The next prime is 2265413. The reversal of 2265397 is 7935622.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7935622 = 2 ⋅3967811.

It is a cyclic number.

It is not a de Polignac number, because 2265397 - 2⁷ = 2265269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265391) 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, 15883 + ... + 16024.

It is an arithmetic number, because the mean of its divisors is an integer number (574344).

2^2265397 is an apocalyptic number.

It is an amenable number.

2265397 is a deficient number, since it is larger than the sum of its proper divisors (31979).

2265397 is an equidigital number, since it uses as much as digits as its factorization.

2265397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31978.

The product of its digits is 22680, while the sum is 34.

The square root of 2265397 is about 1505.1235829659. The cubic root of 2265397 is about 131.3352908970.

It can be divided in two parts, 2265 and 397, that added together give a palindrome (2662).

The spelling of 2265397 in words is "two million, two hundred sixty-five thousand, three hundred ninety-seven".