23297293 has 8 divisors (see below), whose sum is σ = 25006968. Its totient is φ = 21625344.

The previous prime is 23297279. The next prime is 23297297. The reversal of 23297293 is 39279232.

It can be written as a sum of positive squares in 4 ways, for example, as 15468489 + 7828804 = 3933^2 + 2798^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23297293 is a prime.

It is a super-2 number, since 2×23297293² = 1085527722255698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23297297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8146 + ... + 10627.

It is an arithmetic number, because the mean of its divisors is an integer number (3125871).

Almost surely, 2^23297293 is an apocalyptic number.

It is an amenable number.

23297293 is a deficient number, since it is larger than the sum of its proper divisors (1709675).

23297293 is a wasteful number, since it uses less digits than its factorization.

23297293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18863.

The product of its digits is 40824, while the sum is 37.

The square root of 23297293 is about 4826.7269448354. The cubic root of 23297293 is about 285.6067631007.

The spelling of 23297293 in words is "twenty-three million, two hundred ninety-seven thousand, two hundred ninety-three".