13724749 has 8 divisors (see below), whose sum is σ = 14111360. Its totient is φ = 13343616.

The previous prime is 13724747. The next prime is 13724759. The reversal of 13724749 is 94742731.

13724749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13724749 - 2¹ = 13724747 is a prime.

It is a super-2 number, since 2×13724749² = 376737470226002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13724747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3997 + ... + 6589.

It is an arithmetic number, because the mean of its divisors is an integer number (1763920).

Almost surely, 2^13724749 is an apocalyptic number.

It is an amenable number.

13724749 is a deficient number, since it is larger than the sum of its proper divisors (386611).

13724749 is an equidigital number, since it uses as much as digits as its factorization.

13724749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739.

The product of its digits is 42336, while the sum is 37.

The square root of 13724749 is about 3704.6928347705. The cubic root of 13724749 is about 239.4242506946.

The spelling of 13724749 in words is "thirteen million, seven hundred twenty-four thousand, seven hundred forty-nine".