23653963 has 2 divisors, whose sum is σ = 23653964. Its totient is φ = 23653962.

The previous prime is 23653939. The next prime is 23653991. The reversal of 23653963 is 36935632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23653963 - 2⁹ = 23653451 is a prime.

It is not a weakly prime, because it can be changed into another prime (23653933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11826981 + 11826982.

It is an arithmetic number, because the mean of its divisors is an integer number (11826982).

Almost surely, 2^23653963 is an apocalyptic number.

23653963 is a deficient number, since it is larger than the sum of its proper divisors (1).

23653963 is an equidigital number, since it uses as much as digits as its factorization.

23653963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 37.

The square root of 23653963 is about 4863.5340031709. The cubic root of 23653963 is about 287.0568871521.

It can be divided in two parts, 2365 and 3963, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 23653963 in words is "twenty-three million, six hundred fifty-three thousand, nine hundred sixty-three".