13867749 has 12 divisors (see below), whose sum is σ = 22892896. Its totient is φ = 7924392.

The previous prime is 13867741. The next prime is 13867753. The reversal of 13867749 is 94776831.

It is not a de Polignac number, because 13867749 - 2³ = 13867741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13867741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109999 + ... + 110124.

Almost surely, 2^13867749 is an apocalyptic number.

It is an amenable number.

13867749 is a deficient number, since it is larger than the sum of its proper divisors (9025147).

13867749 is a wasteful number, since it uses less digits than its factorization.

13867749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220136 (or 220133 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 13867749 is about 3723.9426687316. The cubic root of 13867749 is about 240.2529104743.

The spelling of 13867749 in words is "thirteen million, eight hundred sixty-seven thousand, seven hundred forty-nine".