23897963 has 2 divisors, whose sum is σ = 23897964. Its totient is φ = 23897962.

The previous prime is 23897947. The next prime is 23897977. The reversal of 23897963 is 36979832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23897963 - 2⁴ = 23897947 is a prime.

It is a super-2 number, since 2×23897963² = 1142225271098738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23897983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11948981 + 11948982.

It is an arithmetic number, because the mean of its divisors is an integer number (11948982).

Almost surely, 2^23897963 is an apocalyptic number.

23897963 is a deficient number, since it is larger than the sum of its proper divisors (1).

23897963 is an equidigital number, since it uses as much as digits as its factorization.

23897963 is an odious number, because the sum of its binary digits is odd.

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

The square root of 23897963 is about 4888.5542852668. The cubic root of 23897963 is about 288.0405477568.

The spelling of 23897963 in words is "twenty-three million, eight hundred ninety-seven thousand, nine hundred sixty-three".