23837321 has 2 divisors, whose sum is σ = 23837322. Its totient is φ = 23837320.

The previous prime is 23837309. The next prime is 23837323. The reversal of 23837321 is 12373832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22705225 + 1132096 = 4765^2 + 1064^2 .

It is a cyclic number.

It is not a de Polignac number, because 23837321 - 2⁶ = 23837257 is a prime.

Together with 23837323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23837323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11918660 + 11918661.

It is an arithmetic number, because the mean of its divisors is an integer number (11918661).

Almost surely, 2^23837321 is an apocalyptic number.

It is an amenable number.

23837321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23837321 is an equidigital number, since it uses as much as digits as its factorization.

23837321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 23837321 is about 4882.3478982965. The cubic root of 23837321 is about 287.7967033971.

The spelling of 23837321 in words is "twenty-three million, eight hundred thirty-seven thousand, three hundred twenty-one".