13347872 has 24 divisors (see below), whose sum is σ = 26365500. Its totient is φ = 6651904.

The previous prime is 13347863. The next prime is 13347877. The reversal of 13347872 is 27874331.

It can be written as a sum of positive squares in 2 ways, for example, as 12418576 + 929296 = 3524^2 + 964^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13347877) 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, 13904 + ... + 14832.

Almost surely, 2^13347872 is an apocalyptic number.

It is an amenable number.

13347872 is a deficient number, since it is larger than the sum of its proper divisors (13017628).

13347872 is an equidigital number, since it uses as much as digits as its factorization.

13347872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388 (or 1380 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 13347872 is about 3653.4739632301. The cubic root of 13347872 is about 237.2123764689.

The spelling of 13347872 in words is "thirteen million, three hundred forty-seven thousand, eight hundred seventy-two".