13877720 has 16 divisors (see below), whose sum is σ = 31224960. Its totient is φ = 5551072.

The previous prime is 13877687. The next prime is 13877741. The reversal of 13877720 is 2777831.

13877720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13877720² = 385182224796800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173432 + ... + 173511.

It is an arithmetic number, because the mean of its divisors is an integer number (1951560).

Almost surely, 2^13877720 is an apocalyptic number.

13877720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13877720 is an abundant number, since it is smaller than the sum of its proper divisors (17347240).

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

13877720 is a wasteful number, since it uses less digits than its factorization.

13877720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346954 (or 346950 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 13877720 is about 3725.2811974400. The cubic root of 13877720 is about 240.3104778045.

The spelling of 13877720 in words is "thirteen million, eight hundred seventy-seven thousand, seven hundred twenty".