13867738 has 4 divisors (see below), whose sum is σ = 20801610. Its totient is φ = 6933868.

The previous prime is 13867729. The next prime is 13867741. The reversal of 13867738 is 83776831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83776831 = 3527 ⋅23753.

It can be written as a sum of positive squares in only one way, i.e., 11785489 + 2082249 = 3433^2 + 1443^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13867694 and 13867703.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3466933 + ... + 3466936.

Almost surely, 2^13867738 is an apocalyptic number.

13867738 is a deficient number, since it is larger than the sum of its proper divisors (6933872).

13867738 is an equidigital number, since it uses as much as digits as its factorization.

13867738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933871.

The product of its digits is 169344, while the sum is 43.

The square root of 13867738 is about 3723.9411918020. The cubic root of 13867738 is about 240.2528469508.

It can be divided in two parts, 138 and 67738, that added together give a palindrome (67876).

The spelling of 13867738 in words is "thirteen million, eight hundred sixty-seven thousand, seven hundred thirty-eight".