13784441 has 6 divisors (see below), whose sum is σ = 15151626. Its totient is φ = 12531200.

The previous prime is 13784431. The next prime is 13784471. The reversal of 13784441 is 14448731.

It can be written as a sum of positive squares in only one way, i.e., 10530025 + 3254416 = 3245^2 + 1804^2 .

It is not a de Polignac number, because 13784441 - 2⁶ = 13784377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13784398 and 13784407.

It is not an unprimeable number, because it can be changed into a prime (13784401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56840 + ... + 57081.

It is an arithmetic number, because the mean of its divisors is an integer number (2525271).

Almost surely, 2^13784441 is an apocalyptic number.

13784441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13784441 is a deficient number, since it is larger than the sum of its proper divisors (1367185).

13784441 is a wasteful number, since it uses less digits than its factorization.

13784441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113943 (or 113932 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 13784441 is about 3712.7403625893. The cubic root of 13784441 is about 239.7708518846.

The spelling of 13784441 in words is "thirteen million, seven hundred eighty-four thousand, four hundred forty-one".