13678736 has 10 divisors (see below), whose sum is σ = 26502582. Its totient is φ = 6839360.

The previous prime is 13678729. The next prime is 13678741. The reversal of 13678736 is 63787631.

It can be written as a sum of positive squares in only one way, i.e., 11182336 + 2496400 = 3344^2 + 1580^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13678693 and 13678702.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427445 + ... + 427476.

Almost surely, 2^13678736 is an apocalyptic number.

13678736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13678736 is a deficient number, since it is larger than the sum of its proper divisors (12823846).

13678736 is an equidigital number, since it uses as much as digits as its factorization.

13678736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854929 (or 854923 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 13678736 is about 3698.4775246039. The cubic root of 13678736 is about 239.1563900020.

The spelling of 13678736 in words is "thirteen million, six hundred seventy-eight thousand, seven hundred thirty-six".