13708749 has 16 divisors (see below), whose sum is σ = 19431360. Its totient is φ = 8567040.

The previous prime is 13708741. The next prime is 13708777. The reversal of 13708749 is 94780731.

It is not a de Polignac number, because 13708749 - 2³ = 13708741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13708741) 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 15 ways as a sum of consecutive naturals, for example, 19494 + ... + 20184.

It is an arithmetic number, because the mean of its divisors is an integer number (1214460).

Almost surely, 2^13708749 is an apocalyptic number.

It is an amenable number.

13708749 is a deficient number, since it is larger than the sum of its proper divisors (5722611).

13708749 is a wasteful number, since it uses less digits than its factorization.

13708749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 13708749 is about 3702.5327817590. The cubic root of 13708749 is about 239.3311760698.

The spelling of 13708749 in words is "thirteen million, seven hundred eight thousand, seven hundred forty-nine".