23848421 has 2 divisors, whose sum is σ = 23848422. Its totient is φ = 23848420.

The previous prime is 23848397. The next prime is 23848427. The reversal of 23848421 is 12484832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21996100 + 1852321 = 4690^2 + 1361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23848421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23848427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11924210 + 11924211.

It is an arithmetic number, because the mean of its divisors is an integer number (11924211).

Almost surely, 2^23848421 is an apocalyptic number.

It is an amenable number.

23848421 is a deficient number, since it is larger than the sum of its proper divisors (1).

23848421 is an equidigital number, since it uses as much as digits as its factorization.

23848421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 32.

The square root of 23848421 is about 4883.4845141559. The cubic root of 23848421 is about 287.8413679196.

The spelling of 23848421 in words is "twenty-three million, eight hundred forty-eight thousand, four hundred twenty-one".