23940479 has 2 divisors, whose sum is σ = 23940480. Its totient is φ = 23940478.

The previous prime is 23940467. The next prime is 23940481. The reversal of 23940479 is 97404932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23940479 - 2⁸ = 23940223 is a prime.

Together with 23940481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23940179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11970239 + 11970240.

It is an arithmetic number, because the mean of its divisors is an integer number (11970240).

Almost surely, 2^23940479 is an apocalyptic number.

23940479 is a deficient number, since it is larger than the sum of its proper divisors (1).

23940479 is an equidigital number, since it uses as much as digits as its factorization.

23940479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 23940479 is about 4892.9008778025. The cubic root of 23940479 is about 288.2112607273.

The spelling of 23940479 in words is "twenty-three million, nine hundred forty thousand, four hundred seventy-nine".