22657313 has 4 divisors (see below), whose sum is σ = 25894080. Its totient is φ = 19420548.

The previous prime is 22657303. The next prime is 22657321. The reversal of 22657313 is 31375622.

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 22657313 - 2¹⁰ = 22656289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22657303) 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, 1618373 + ... + 1618386.

It is an arithmetic number, because the mean of its divisors is an integer number (6473520).

Almost surely, 2^22657313 is an apocalyptic number.

It is an amenable number.

22657313 is a deficient number, since it is larger than the sum of its proper divisors (3236767).

22657313 is an equidigital number, since it uses as much as digits as its factorization.

22657313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236766.

The product of its digits is 7560, while the sum is 29.

The square root of 22657313 is about 4759.9698528457. The cubic root of 22657313 is about 282.9672243296.

The spelling of 22657313 in words is "twenty-two million, six hundred fifty-seven thousand, three hundred thirteen".