13727768 has 8 divisors (see below), whose sum is σ = 25739580. Its totient is φ = 6863880.

The previous prime is 13727767. The next prime is 13727771. The reversal of 13727768 is 86772731.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×13727768³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13727767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 857978 + ... + 857993.

Almost surely, 2^13727768 is an apocalyptic number.

It is an amenable number.

13727768 is a deficient number, since it is larger than the sum of its proper divisors (12011812).

13727768 is a wasteful number, since it uses less digits than its factorization.

13727768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715977 (or 1715973 counting only the distinct ones).

The product of its digits is 98784, while the sum is 41.

The square root of 13727768 is about 3705.1002685487. The cubic root of 13727768 is about 239.4418045996.

The spelling of 13727768 in words is "thirteen million, seven hundred twenty-seven thousand, seven hundred sixty-eight".