23636947 has 2 divisors, whose sum is σ = 23636948. Its totient is φ = 23636946.

The previous prime is 23636941. The next prime is 23636957. The reversal of 23636947 is 74963632.

It is a weak prime.

23636947 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 23636947 - 2⁷ = 23636819 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (23636941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11818473 + 11818474.

It is an arithmetic number, because the mean of its divisors is an integer number (11818474).

Almost surely, 2^23636947 is an apocalyptic number.

23636947 is a deficient number, since it is larger than the sum of its proper divisors (1).

23636947 is an equidigital number, since it uses as much as digits as its factorization.

23636947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 40.

The square root of 23636947 is about 4861.7843432221. The cubic root of 23636947 is about 286.9880370721.

The spelling of 23636947 in words is "twenty-three million, six hundred thirty-six thousand, nine hundred forty-seven".