23878313 has 2 divisors, whose sum is σ = 23878314. Its totient is φ = 23878312.

The previous prime is 23878297. The next prime is 23878321. The reversal of 23878313 is 31387832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21279769 + 2598544 = 4613^2 + 1612^2 .

It is a cyclic number.

It is not a de Polignac number, because 23878313 - 2⁴ = 23878297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_1499921 and since 23878313 and 1499921 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (23878343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11939156 + 11939157.

It is an arithmetic number, because the mean of its divisors is an integer number (11939157).

Almost surely, 2^23878313 is an apocalyptic number.

It is an amenable number.

23878313 is a deficient number, since it is larger than the sum of its proper divisors (1).

23878313 is an equidigital number, since it uses as much as digits as its factorization.

23878313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 23878313 is about 4886.5440753154. The cubic root of 23878313 is about 287.9615793976.

The spelling of 23878313 in words is "twenty-three million, eight hundred seventy-eight thousand, three hundred thirteen".