23969879 has 2 divisors, whose sum is σ = 23969880. Its totient is φ = 23969878.

The previous prime is 23969873. The next prime is 23969903. The reversal of 23969879 is 97896932.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23969879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23969879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23969873) 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, 11984939 + 11984940.

It is an arithmetic number, because the mean of its divisors is an integer number (11984940).

Almost surely, 2^23969879 is an apocalyptic number.

23969879 is a deficient number, since it is larger than the sum of its proper divisors (1).

23969879 is an equidigital number, since it uses as much as digits as its factorization.

23969879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The square root of 23969879 is about 4895.9043087054. The cubic root of 23969879 is about 288.3291913231.

The spelling of 23969879 in words is "twenty-three million, nine hundred sixty-nine thousand, eight hundred seventy-nine".