23493397 has 4 divisors (see below), whose sum is σ = 23517216. Its totient is φ = 23469580.

The previous prime is 23493391. The next prime is 23493433. The reversal of 23493397 is 79339432.

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 a cyclic number.

It is not a de Polignac number, because 23493397 - 2³ = 23493389 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 (23493391) 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, 10363 + ... + 12424.

It is an arithmetic number, because the mean of its divisors is an integer number (5879304).

Almost surely, 2^23493397 is an apocalyptic number.

It is an amenable number.

23493397 is a deficient number, since it is larger than the sum of its proper divisors (23819).

23493397 is a wasteful number, since it uses less digits than its factorization.

23493397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23818.

The product of its digits is 122472, while the sum is 40.

The square root of 23493397 is about 4846.9987621207. The cubic root of 23493397 is about 286.4058861198.

The spelling of 23493397 in words is "twenty-three million, four hundred ninety-three thousand, three hundred ninety-seven".