13023887 has 4 divisors (see below), whose sum is σ = 13790016. Its totient is φ = 12257760.

The previous prime is 13023877. The next prime is 13023893. The reversal of 13023887 is 78832031.

13023887 is digitally balanced in base 3, 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 13023887 - 2¹² = 13019791 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 (13023847) 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, 383039 + ... + 383072.

It is an arithmetic number, because the mean of its divisors is an integer number (3447504).

Almost surely, 2^13023887 is an apocalyptic number.

13023887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13023887 is a deficient number, since it is larger than the sum of its proper divisors (766129).

13023887 is an equidigital number, since it uses as much as digits as its factorization.

13023887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766128.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 13023887 is about 3608.8622860952. The cubic root of 13023887 is about 235.2773968890.

The spelling of 13023887 in words is "thirteen million, twenty-three thousand, eight hundred eighty-seven".