13387828 has 12 divisors (see below), whose sum is σ = 23496480. Its totient is φ = 6674552.

The previous prime is 13387813. The next prime is 13387841. The reversal of 13387828 is 82878331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3226 + ... + 6097.

It is an arithmetic number, because the mean of its divisors is an integer number (1958040).

Almost surely, 2^13387828 is an apocalyptic number.

It is an amenable number.

13387828 is a deficient number, since it is larger than the sum of its proper divisors (10108652).

13387828 is a wasteful number, since it uses less digits than its factorization.

13387828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686 (or 9684 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 13387828 is about 3658.9380973173. The cubic root of 13387828 is about 237.4488340378.

The spelling of 13387828 in words is "thirteen million, three hundred eighty-seven thousand, eight hundred twenty-eight".