23167887 has 4 divisors (see below), whose sum is σ = 30890520. Its totient is φ = 15445256.

The previous prime is 23167871. The next prime is 23167901. The reversal of 23167887 is 78876132.

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

It is a cyclic number.

It is not a de Polignac number, because 23167887 - 2⁴ = 23167871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23167817) 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, 3861312 + ... + 3861317.

It is an arithmetic number, because the mean of its divisors is an integer number (7722630).

Almost surely, 2^23167887 is an apocalyptic number.

23167887 is a deficient number, since it is larger than the sum of its proper divisors (7722633).

23167887 is an equidigital number, since it uses as much as digits as its factorization.

23167887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7722632.

The product of its digits is 112896, while the sum is 42.

The square root of 23167887 is about 4813.3031277907. The cubic root of 23167887 is about 285.0769752068.

It can be divided in two parts, 23 and 167887, that added together give a triangular number (167910 = T₅₇₉).

The spelling of 23167887 in words is "twenty-three million, one hundred sixty-seven thousand, eight hundred eighty-seven".