13977755 has 8 divisors (see below), whose sum is σ = 18298224. Its totient is φ = 10165600.

The previous prime is 13977751. The next prime is 13977763. The reversal of 13977755 is 55777931.

13977755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13977755 - 2² = 13977751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13977751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127016 + ... + 127125.

It is an arithmetic number, because the mean of its divisors is an integer number (2287278).

Almost surely, 2^13977755 is an apocalyptic number.

13977755 is a deficient number, since it is larger than the sum of its proper divisors (4320469).

13977755 is a wasteful number, since it uses less digits than its factorization.

13977755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254157.

The product of its digits is 231525, while the sum is 44.

The square root of 13977755 is about 3738.6835918542. The cubic root of 13977755 is about 240.8865072846.

The spelling of 13977755 in words is "thirteen million, nine hundred seventy-seven thousand, seven hundred fifty-five".