23960921 has 4 divisors (see below), whose sum is σ = 24016692. Its totient is φ = 23905152.

The previous prime is 23960891. The next prime is 23960927. The reversal of 23960921 is 12906932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5470921 + 18490000 = 2339^2 + 4300^2 .

It is a cyclic number.

It is not a de Polignac number, because 23960921 - 2⁶ = 23960857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23960927) 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, 27236 + ... + 28101.

It is an arithmetic number, because the mean of its divisors is an integer number (6004173).

Almost surely, 2^23960921 is an apocalyptic number.

It is an amenable number.

23960921 is a deficient number, since it is larger than the sum of its proper divisors (55771).

23960921 is an equidigital number, since it uses as much as digits as its factorization.

23960921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55770.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 23960921 is about 4894.9893769037. The cubic root of 23960921 is about 288.2932688122.

The spelling of 23960921 in words is "twenty-three million, nine hundred sixty thousand, nine hundred twenty-one".