13649756 has 6 divisors (see below), whose sum is σ = 23887080. Its totient is φ = 6824876.

The previous prime is 13649747. The next prime is 13649767. The reversal of 13649756 is 65794631.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1706216 + ... + 1706223.

It is an arithmetic number, because the mean of its divisors is an integer number (3981180).

Almost surely, 2^13649756 is an apocalyptic number.

It is an amenable number.

13649756 is a deficient number, since it is larger than the sum of its proper divisors (10237324).

13649756 is a wasteful number, since it uses less digits than its factorization.

13649756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412443 (or 3412441 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 13649756 is about 3694.5576189850. The cubic root of 13649756 is about 238.9873770053.

The spelling of 13649756 in words is "thirteen million, six hundred forty-nine thousand, seven hundred fifty-six".