23678393 has 2 divisors, whose sum is σ = 23678394. Its totient is φ = 23678392.

The previous prime is 23678387. The next prime is 23678437. The reversal of 23678393 is 39387632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14845609 + 8832784 = 3853^2 + 2972^2 .

It is a cyclic number.

It is not a de Polignac number, because 23678393 - 2⁶ = 23678329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23678393.

It is not a weakly prime, because it can be changed into another prime (23678593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11839196 + 11839197.

It is an arithmetic number, because the mean of its divisors is an integer number (11839197).

Almost surely, 2^23678393 is an apocalyptic number.

It is an amenable number.

23678393 is a deficient number, since it is larger than the sum of its proper divisors (1).

23678393 is an equidigital number, since it uses as much as digits as its factorization.

23678393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 41.

The square root of 23678393 is about 4866.0449032042. The cubic root of 23678393 is about 287.1556780234.

The spelling of 23678393 in words is "twenty-three million, six hundred seventy-eight thousand, three hundred ninety-three".