23494979 has 2 divisors, whose sum is σ = 23494980. Its totient is φ = 23494978.

The previous prime is 23494949. The next prime is 23494987. The reversal of 23494979 is 97949432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23494979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23494949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11747489 + 11747490.

It is an arithmetic number, because the mean of its divisors is an integer number (11747490).

Almost surely, 2^23494979 is an apocalyptic number.

23494979 is a deficient number, since it is larger than the sum of its proper divisors (1).

23494979 is an equidigital number, since it uses as much as digits as its factorization.

23494979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 47.

The square root of 23494979 is about 4847.1619531433. The cubic root of 23494979 is about 286.4123146487.

The spelling of 23494979 in words is "twenty-three million, four hundred ninety-four thousand, nine hundred seventy-nine".