23920079 has 2 divisors, whose sum is σ = 23920080. Its totient is φ = 23920078.

The previous prime is 23920073. The next prime is 23920081. The reversal of 23920079 is 97002932.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23920079 is a prime.

Together with 23920081, 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 (23920073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11960039 + 11960040.

It is an arithmetic number, because the mean of its divisors is an integer number (11960040).

Almost surely, 2^23920079 is an apocalyptic number.

23920079 is a deficient number, since it is larger than the sum of its proper divisors (1).

23920079 is an equidigital number, since it uses as much as digits as its factorization.

23920079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 23920079 is about 4890.8157806239. The cubic root of 23920079 is about 288.1293745836.

The spelling of 23920079 in words is "twenty-three million, nine hundred twenty thousand, seventy-nine".