13739738 has 4 divisors (see below), whose sum is σ = 20609610. Its totient is φ = 6869868.

The previous prime is 13739729. The next prime is 13739741. The reversal of 13739738 is 83793731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10582009 + 3157729 = 3253^2 + 1777^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13739695 and 13739704.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3434933 + ... + 3434936.

Almost surely, 2^13739738 is an apocalyptic number.

13739738 is a deficient number, since it is larger than the sum of its proper divisors (6869872).

13739738 is an equidigital number, since it uses as much as digits as its factorization.

13739738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6869871.

The product of its digits is 95256, while the sum is 41.

The square root of 13739738 is about 3706.7152574753. The cubic root of 13739738 is about 239.5113785648.

It can be divided in two parts, 1373 and 9738, that added together give a palindrome (11111).

The spelling of 13739738 in words is "thirteen million, seven hundred thirty-nine thousand, seven hundred thirty-eight".