13941685 has 4 divisors (see below), whose sum is σ = 16730028. Its totient is φ = 11153344.

The previous prime is 13941673. The next prime is 13941689. The reversal of 13941685 is 58614931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58614931 = 103 ⋅569077.

It can be written as a sum of positive squares in 2 ways, for example, as 2604996 + 11336689 = 1614^2 + 3367^2 .

It is a cyclic number.

It is not a de Polignac number, because 13941685 - 2¹¹ = 13939637 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 (13941689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394164 + ... + 1394173.

It is an arithmetic number, because the mean of its divisors is an integer number (4182507).

Almost surely, 2^13941685 is an apocalyptic number.

It is an amenable number.

13941685 is a deficient number, since it is larger than the sum of its proper divisors (2788343).

13941685 is an equidigital number, since it uses as much as digits as its factorization.

13941685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788342.

The product of its digits is 25920, while the sum is 37.

The square root of 13941685 is about 3733.8565853551. The cubic root of 13941685 is about 240.6791239356.

The spelling of 13941685 in words is "thirteen million, nine hundred forty-one thousand, six hundred eighty-five".