23393971 has 2 divisors, whose sum is σ = 23393972. Its totient is φ = 23393970.

The previous prime is 23393969. The next prime is 23393987. The reversal of 23393971 is 17939332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23393971 - 2¹ = 23393969 is a prime.

Together with 23393969, it forms a pair of twin primes.

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 23393971.

It is not a weakly prime, because it can be changed into another prime (23393941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11696985 + 11696986.

It is an arithmetic number, because the mean of its divisors is an integer number (11696986).

Almost surely, 2^23393971 is an apocalyptic number.

23393971 is a deficient number, since it is larger than the sum of its proper divisors (1).

23393971 is an equidigital number, since it uses as much as digits as its factorization.

23393971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 37.

The square root of 23393971 is about 4836.7314376550. The cubic root of 23393971 is about 286.0012836756.

The spelling of 23393971 in words is "twenty-three million, three hundred ninety-three thousand, nine hundred seventy-one".