13247888 has 20 divisors (see below), whose sum is σ = 25844700. Its totient is φ = 6578304.

The previous prime is 13247873. The next prime is 13247893. The reversal of 13247888 is 88874231.

It can be written as a sum of positive squares in 2 ways, for example, as 7333264 + 5914624 = 2708^2 + 2432^2 .

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, 395 + ... + 5162.

It is an arithmetic number, because the mean of its divisors is an integer number (1292235).

Almost surely, 2^13247888 is an apocalyptic number.

It is an amenable number.

13247888 is a deficient number, since it is larger than the sum of its proper divisors (12596812).

13247888 is a wasteful number, since it uses less digits than its factorization.

13247888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714 (or 5708 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 13247888 is about 3639.7648275678. The cubic root of 13247888 is about 236.6186011847.

The spelling of 13247888 in words is "thirteen million, two hundred forty-seven thousand, eight hundred eighty-eight".