22897313 has 4 divisors (see below), whose sum is σ = 23635968. Its totient is φ = 22158660.

The previous prime is 22897309. The next prime is 22897361. The reversal of 22897313 is 31379822.

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: 31379822 = 2 ⋅15689911.

It is a cyclic number.

It is not a de Polignac number, because 22897313 - 2² = 22897309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22897363) 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, 369281 + ... + 369342.

It is an arithmetic number, because the mean of its divisors is an integer number (5908992).

Almost surely, 2^22897313 is an apocalyptic number.

It is an amenable number.

22897313 is a deficient number, since it is larger than the sum of its proper divisors (738655).

22897313 is an equidigital number, since it uses as much as digits as its factorization.

22897313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738654.

The product of its digits is 18144, while the sum is 35.

The square root of 22897313 is about 4785.1136872597. The cubic root of 22897313 is about 283.9628373313.

The spelling of 22897313 in words is "twenty-two million, eight hundred ninety-seven thousand, three hundred thirteen".