13727857 has 16 divisors (see below), whose sum is σ = 17079552. Its totient is φ = 10840320.

The previous prime is 13727839. The next prime is 13727873. The reversal of 13727857 is 75872731.

13727857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13727857 - 2⁷ = 13727729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13727837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393 + ... + 5254.

It is an arithmetic number, because the mean of its divisors is an integer number (1067472).

Almost surely, 2^13727857 is an apocalyptic number.

13727857 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13727857 is a deficient number, since it is larger than the sum of its proper divisors (3351695).

13727857 is a wasteful number, since it uses less digits than its factorization.

13727857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5688.

The product of its digits is 82320, while the sum is 40.

The square root of 13727857 is about 3705.1122790005. The cubic root of 13727857 is about 239.4423220489.

It can be divided in two parts, 1372 and 7857, that added together give a palindrome (9229).

The spelling of 13727857 in words is "thirteen million, seven hundred twenty-seven thousand, eight hundred fifty-seven".