14278685 has 8 divisors (see below), whose sum is σ = 17157336. Its totient is φ = 11407680.

The previous prime is 14278681. The next prime is 14278687. The reversal of 14278685 is 58687241.

14278685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3136441 + 11142244 = 1771^2 + 3338^2 .

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

It is not a de Polignac number, because 14278685 - 2² = 14278681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14278681) 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, 3707 + ... + 6503.

It is an arithmetic number, because the mean of its divisors is an integer number (2144667).

Almost surely, 2^14278685 is an apocalyptic number.

It is an amenable number.

14278685 is a deficient number, since it is larger than the sum of its proper divisors (2878651).

14278685 is a wasteful number, since it uses less digits than its factorization.

14278685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823.

The product of its digits is 107520, while the sum is 41.

The square root of 14278685 is about 3778.7147285817. The cubic root of 14278685 is about 242.6029463359.

The spelling of 14278685 in words is "fourteen million, two hundred seventy-eight thousand, six hundred eighty-five".