11423887 has 4 divisors (see below), whose sum is σ = 11439736. Its totient is φ = 11408040.

The previous prime is 11423873. The next prime is 11423891. The reversal of 11423887 is 78832411.

It is a happy number.

11423887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11423887 - 2⁷ = 11423759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11423827) 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, 6789 + ... + 8302.

It is an arithmetic number, because the mean of its divisors is an integer number (2859934).

Almost surely, 2^11423887 is an apocalyptic number.

11423887 is a deficient number, since it is larger than the sum of its proper divisors (15849).

11423887 is an equidigital number, since it uses as much as digits as its factorization.

11423887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15848.

The product of its digits is 10752, while the sum is 34.

The square root of 11423887 is about 3379.9241115741. The cubic root of 11423887 is about 225.2187962210.

The spelling of 11423887 in words is "eleven million, four hundred twenty-three thousand, eight hundred eighty-seven".