13843977 has 8 divisors (see below), whose sum is σ = 21095616. Its totient is φ = 7910832.

The previous prime is 13843943. The next prime is 13843993. The reversal of 13843977 is 77934831.

13843977 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 13843977 - 2¹⁵ = 13811209 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13843997) 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, 329598 + ... + 329639.

It is an arithmetic number, because the mean of its divisors is an integer number (2636952).

Almost surely, 2^13843977 is an apocalyptic number.

It is an amenable number.

13843977 is a deficient number, since it is larger than the sum of its proper divisors (7251639).

13843977 is an equidigital number, since it uses as much as digits as its factorization.

13843977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659247.

The product of its digits is 127008, while the sum is 42.

The square root of 13843977 is about 3720.7495212658. The cubic root of 13843977 is about 240.1155519955.

The spelling of 13843977 in words is "thirteen million, eight hundred forty-three thousand, nine hundred seventy-seven".