13861705 has 16 divisors (see below), whose sum is σ = 19543104. Its totient is φ = 9305280.

The previous prime is 13861703. The next prime is 13861711. The reversal of 13861705 is 50716831.

It is not a de Polignac number, because 13861705 - 2¹ = 13861703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13861703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8979 + ... + 10408.

It is an arithmetic number, because the mean of its divisors is an integer number (1221444).

Almost surely, 2^13861705 is an apocalyptic number.

It is an amenable number.

13861705 is a deficient number, since it is larger than the sum of its proper divisors (5681399).

13861705 is a wasteful number, since it uses less digits than its factorization.

13861705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19416.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 13861705 is about 3723.1310747810. The cubic root of 13861705 is about 240.2180021510.

The spelling of 13861705 in words is "thirteen million, eight hundred sixty-one thousand, seven hundred five".