13982749 has 8 divisors (see below), whose sum is σ = 15280992. Its totient is φ = 12689040.

The previous prime is 13982741. The next prime is 13982753. The reversal of 13982749 is 94728931.

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 13982749 - 2³ = 13982741 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 (13982741) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 11442 + ... + 12604.

It is an arithmetic number, because the mean of its divisors is an integer number (1910124).

Almost surely, 2^13982749 is an apocalyptic number.

It is an amenable number.

13982749 is a deficient number, since it is larger than the sum of its proper divisors (1298243).

13982749 is a wasteful number, since it uses less digits than its factorization.

13982749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267.

The product of its digits is 108864, while the sum is 43.

The square root of 13982749 is about 3739.3514143498. The cubic root of 13982749 is about 240.9151920049.

It can be divided in two parts, 139827 and 49, that added together give a square (139876 = 374²).

The spelling of 13982749 in words is "thirteen million, nine hundred eighty-two thousand, seven hundred forty-nine".