23976921 has 8 divisors (see below), whose sum is σ = 32091840. Its totient is φ = 15923312.

The previous prime is 23976899. The next prime is 23976937. The reversal of 23976921 is 12967932.

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

It is a cyclic number.

It is not a de Polignac number, because 23976921 - 2¹⁴ = 23960537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23976921.

It is not an unprimeable number, because it can be changed into a prime (23976221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14406 + ... + 15983.

It is an arithmetic number, because the mean of its divisors is an integer number (4011480).

Almost surely, 2^23976921 is an apocalyptic number.

It is an amenable number.

23976921 is a deficient number, since it is larger than the sum of its proper divisors (8114919).

23976921 is a wasteful number, since it uses less digits than its factorization.

23976921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30655.

The product of its digits is 40824, while the sum is 39.

The square root of 23976921 is about 4896.6234284454. The cubic root of 23976921 is about 288.3574241921.

The spelling of 23976921 in words is "twenty-three million, nine hundred seventy-six thousand, nine hundred twenty-one".