23688967 has 2 divisors, whose sum is σ = 23688968. Its totient is φ = 23688966.

The previous prime is 23688949. The next prime is 23688979. The reversal of 23688967 is 76988632.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23688967 is a prime.

It is a super-2 number, since 2×23688967² = 1122334315054178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23688967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23680967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11844483 + 11844484.

It is an arithmetic number, because the mean of its divisors is an integer number (11844484).

Almost surely, 2^23688967 is an apocalyptic number.

23688967 is a deficient number, since it is larger than the sum of its proper divisors (1).

23688967 is an equidigital number, since it uses as much as digits as its factorization.

23688967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 23688967 is about 4867.1312906064. The cubic root of 23688967 is about 287.1984164568.

It can be divided in two parts, 23688 and 967, that multiplied together give a triangular number (22906296 = T₆₇₆₈).

The spelling of 23688967 in words is "twenty-three million, six hundred eighty-eight thousand, nine hundred sixty-seven".