13391684 has 6 divisors (see below), whose sum is σ = 23435454. Its totient is φ = 6695840.

The previous prime is 13391683. The next prime is 13391687. The reversal of 13391684 is 48619331.

It can be written as a sum of positive squares in only one way, i.e., 11628100 + 1763584 = 3410^2 + 1328^2 .

It is a super-3 number, since 3×13391684³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13391683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1673957 + ... + 1673964.

It is an arithmetic number, because the mean of its divisors is an integer number (3905909).

Almost surely, 2^13391684 is an apocalyptic number.

It is an amenable number.

13391684 is a deficient number, since it is larger than the sum of its proper divisors (10043770).

13391684 is a wasteful number, since it uses less digits than its factorization.

13391684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347925 (or 3347923 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 13391684 is about 3659.4649882189. The cubic root of 13391684 is about 237.4716287439.

The spelling of 13391684 in words is "thirteen million, three hundred ninety-one thousand, six hundred eighty-four".