13003887 has 8 divisors (see below), whose sum is σ = 18672304. Its totient is φ = 8002368.

The previous prime is 13003883. The next prime is 13003889. The reversal of 13003887 is 78830031.

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

It is not a de Polignac number, because 13003887 - 2² = 13003883 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 (13003883) 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, 166678 + ... + 166755.

It is an arithmetic number, because the mean of its divisors is an integer number (2334038).

Almost surely, 2^13003887 is an apocalyptic number.

13003887 is a deficient number, since it is larger than the sum of its proper divisors (5668417).

13003887 is a wasteful number, since it uses less digits than its factorization.

13003887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333449.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 13003887 is about 3606.0902650932. The cubic root of 13003887 is about 235.1569014058.

The spelling of 13003887 in words is "thirteen million, three thousand, eight hundred eighty-seven".