23493739 has 2 divisors, whose sum is σ = 23493740. Its totient is φ = 23493738.

The previous prime is 23493737. The next prime is 23493817. The reversal of 23493739 is 93739432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23493739 - 2¹ = 23493737 is a prime.

Together with 23493737, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23493733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11746869 + 11746870.

It is an arithmetic number, because the mean of its divisors is an integer number (11746870).

Almost surely, 2^23493739 is an apocalyptic number.

23493739 is a deficient number, since it is larger than the sum of its proper divisors (1).

23493739 is an equidigital number, since it uses as much as digits as its factorization.

23493739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 40.

The square root of 23493739 is about 4847.0340415557. The cubic root of 23493739 is about 286.4072758768.

The spelling of 23493739 in words is "twenty-three million, four hundred ninety-three thousand, seven hundred thirty-nine".