23497921 has 8 divisors (see below), whose sum is σ = 24136704. Its totient is φ = 22866480.

The previous prime is 23497891. The next prime is 23497933. The reversal of 23497921 is 12979432.

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 23497921 - 2¹⁵ = 23465153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23491921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4986 + ... + 8476.

It is an arithmetic number, because the mean of its divisors is an integer number (3017088).

Almost surely, 2^23497921 is an apocalyptic number.

It is an amenable number.

23497921 is a deficient number, since it is larger than the sum of its proper divisors (638783).

23497921 is a wasteful number, since it uses less digits than its factorization.

23497921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671.

The product of its digits is 27216, while the sum is 37.

The square root of 23497921 is about 4847.4654201964. The cubic root of 23497921 is about 286.4242688321.

The spelling of 23497921 in words is "twenty-three million, four hundred ninety-seven thousand, nine hundred twenty-one".