23687967 has 4 divisors (see below), whose sum is σ = 31583960. Its totient is φ = 15791976.

The previous prime is 23687957. The next prime is 23687977. The reversal of 23687967 is 76978632.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23687957) and next prime (23687977).

It is not a de Polignac number, because 23687967 - 2⁶ = 23687903 is a prime.

It is a super-2 number, since 2×23687967² = 1122239561186178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23687957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3947992 + ... + 3947997.

It is an arithmetic number, because the mean of its divisors is an integer number (7895990).

Almost surely, 2^23687967 is an apocalyptic number.

23687967 is a deficient number, since it is larger than the sum of its proper divisors (7895993).

23687967 is an equidigital number, since it uses as much as digits as its factorization.

23687967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7895992.

The product of its digits is 762048, while the sum is 48.

The square root of 23687967 is about 4867.0285596039. The cubic root of 23687967 is about 287.1943751598.

The spelling of 23687967 in words is "twenty-three million, six hundred eighty-seven thousand, nine hundred sixty-seven".