23402479 has 2 divisors, whose sum is σ = 23402480. Its totient is φ = 23402478.

The previous prime is 23402473. The next prime is 23402531. The reversal of 23402479 is 97420432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23402479 - 2⁵ = 23402447 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23402479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23402473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701239 + 11701240.

It is an arithmetic number, because the mean of its divisors is an integer number (11701240).

Almost surely, 2^23402479 is an apocalyptic number.

23402479 is a deficient number, since it is larger than the sum of its proper divisors (1).

23402479 is an equidigital number, since it uses as much as digits as its factorization.

23402479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 23402479 is about 4837.6108772823. The cubic root of 23402479 is about 286.0359507842.

The spelling of 23402479 in words is "twenty-three million, four hundred two thousand, four hundred seventy-nine".