13769556 has 12 divisors (see below), whose sum is σ = 32128992. Its totient is φ = 4589848.

The previous prime is 13769551. The next prime is 13769573. The reversal of 13769556 is 65596731.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13769551) 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 3 ways as a sum of consecutive naturals, for example, 573720 + ... + 573743.

It is an arithmetic number, because the mean of its divisors is an integer number (2677416).

Almost surely, 2^13769556 is an apocalyptic number.

It is an amenable number.

13769556 is an abundant number, since it is smaller than the sum of its proper divisors (18359436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13769556 is a wasteful number, since it uses less digits than its factorization.

13769556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147470 (or 1147468 counting only the distinct ones).

The product of its digits is 170100, while the sum is 42.

The square root of 13769556 is about 3710.7352371195. The cubic root of 13769556 is about 239.6845160284.

The spelling of 13769556 in words is "thirteen million, seven hundred sixty-nine thousand, five hundred fifty-six".