13777868 has 12 divisors (see below), whose sum is σ = 25966080. Its totient is φ = 6358992.

The previous prime is 13777861. The next prime is 13777877. The reversal of 13777868 is 86877731.

It is not an unprimeable number, because it can be changed into a prime (13777861) 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 3 ways as a sum of consecutive naturals, for example, 132428 + ... + 132531.

It is an arithmetic number, because the mean of its divisors is an integer number (2163840).

Almost surely, 2^13777868 is an apocalyptic number.

It is an amenable number.

13777868 is a deficient number, since it is larger than the sum of its proper divisors (12188212).

13777868 is a wasteful number, since it uses less digits than its factorization.

13777868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264976 (or 264974 counting only the distinct ones).

The product of its digits is 395136, while the sum is 47.

The square root of 13777868 is about 3711.8550618256. The cubic root of 13777868 is about 239.7327348902.

The spelling of 13777868 in words is "thirteen million, seven hundred seventy-seven thousand, eight hundred sixty-eight".