14191986 has 32 divisors (see below), whose sum is σ = 30030336. Its totient is φ = 4464000.

The previous prime is 14191981. The next prime is 14191987. The reversal of 14191986 is 68919141.

14191986 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14191981) 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, 6696 + ... + 8556.

It is an arithmetic number, because the mean of its divisors is an integer number (938448).

Almost surely, 2^14191986 is an apocalyptic number.

14191986 is an abundant number, since it is smaller than the sum of its proper divisors (15838350).

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

14191986 is a wasteful number, since it uses less digits than its factorization.

14191986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938.

The product of its digits is 15552, while the sum is 39.

The square root of 14191986 is about 3767.2252388197. The cubic root of 14191986 is about 242.1109274485.

The spelling of 14191986 in words is "fourteen million, one hundred ninety-one thousand, nine hundred eighty-six".