23973497 has 4 divisors (see below), whose sum is σ = 25235280. Its totient is φ = 22711716.

The previous prime is 23973491. The next prime is 23973539. The reversal of 23973497 is 79437932.

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 23973497 - 2⁸ = 23973241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23973491) 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, 630863 + ... + 630900.

It is an arithmetic number, because the mean of its divisors is an integer number (6308820).

Almost surely, 2^23973497 is an apocalyptic number.

It is an amenable number.

23973497 is a deficient number, since it is larger than the sum of its proper divisors (1261783).

23973497 is a wasteful number, since it uses less digits than its factorization.

23973497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261782.

The product of its digits is 285768, while the sum is 44.

The square root of 23973497 is about 4896.2737872795. The cubic root of 23973497 is about 288.3436973417.

The spelling of 23973497 in words is "twenty-three million, nine hundred seventy-three thousand, four hundred ninety-seven".