23232921 has 16 divisors (see below), whose sum is σ = 32939136. Its totient is φ = 14533376.

The previous prime is 23232917. The next prime is 23232959. The reversal of 23232921 is 12923232.

It is a cyclic number.

It is not a de Polignac number, because 23232921 - 2² = 23232917 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23232891 and 23232900.

It is not an unprimeable number, because it can be changed into a prime (23232901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481 + ... + 6833.

It is an arithmetic number, because the mean of its divisors is an integer number (2058696).

Almost surely, 2^23232921 is an apocalyptic number.

It is an amenable number.

23232921 is a deficient number, since it is larger than the sum of its proper divisors (9706215).

23232921 is a wasteful number, since it uses less digits than its factorization.

23232921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6432.

The product of its digits is 1296, while the sum is 24.

The square root of 23232921 is about 4820.0540453402. The cubic root of 23232921 is about 285.3434701698.

It can be divided in two parts, 232 and 32921, that added together give a triangular number (33153 = T₂₅₇).

The spelling of 23232921 in words is "twenty-three million, two hundred thirty-two thousand, nine hundred twenty-one".