23972293 has 4 divisors (see below), whose sum is σ = 24014848. Its totient is φ = 23929740.

The previous prime is 23972287. The next prime is 23972317. The reversal of 23972293 is 39227932.

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 a de Polignac number, because none of the positive numbers 2^k-23972293 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 (23972593) 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, 20421 + ... + 21562.

It is an arithmetic number, because the mean of its divisors is an integer number (6003712).

Almost surely, 2^23972293 is an apocalyptic number.

It is an amenable number.

23972293 is a deficient number, since it is larger than the sum of its proper divisors (42555).

23972293 is an equidigital number, since it uses as much as digits as its factorization.

23972293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42554.

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

The square root of 23972293 is about 4896.1508350949. The cubic root of 23972293 is about 288.3388701830.

The spelling of 23972293 in words is "twenty-three million, nine hundred seventy-two thousand, two hundred ninety-three".