23406887 has 8 divisors (see below), whose sum is σ = 26912256. Its totient is φ = 19941912.

The previous prime is 23406883. The next prime is 23406899. The reversal of 23406887 is 78860432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23406887 - 2² = 23406883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23406887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23406883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8843 + ... + 11180.

It is an arithmetic number, because the mean of its divisors is an integer number (3364032).

Almost surely, 2^23406887 is an apocalyptic number.

23406887 is a deficient number, since it is larger than the sum of its proper divisors (3505369).

23406887 is a wasteful number, since it uses less digits than its factorization.

23406887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20197.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 23406887 is about 4838.0664526234. The cubic root of 23406887 is about 286.0539085301.

The spelling of 23406887 in words is "twenty-three million, four hundred six thousand, eight hundred eighty-seven".