13703649 has 16 divisors (see below), whose sum is σ = 19761408. Its totient is φ = 8413952.

The previous prime is 13703621. The next prime is 13703659. The reversal of 13703649 is 94630731.

It is a cyclic number.

It is not a de Polignac number, because 13703649 - 2¹⁷ = 13572577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13703659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462 + ... + 5255.

It is an arithmetic number, because the mean of its divisors is an integer number (1235088).

Almost surely, 2^13703649 is an apocalyptic number.

It is an amenable number.

13703649 is a deficient number, since it is larger than the sum of its proper divisors (6057759).

13703649 is a wasteful number, since it uses less digits than its factorization.

13703649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 13703649 is about 3701.8439999546. The cubic root of 13703649 is about 239.3014933129.

The spelling of 13703649 in words is "thirteen million, seven hundred three thousand, six hundred forty-nine".