13861629 has 12 divisors (see below), whose sum is σ = 20074236. Its totient is φ = 9217152.

The previous prime is 13861607. The next prime is 13861633. The reversal of 13861629 is 92616831.

13861629 is a `hidden beast` number, since 1 + 38 + 616 + 2 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1625625 + 12236004 = 1275^2 + 3498^2 .

It is not a de Polignac number, because 13861629 - 2¹¹ = 13859581 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13861593 and 13861602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13861129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2119 + ... + 5675.

It is an arithmetic number, because the mean of its divisors is an integer number (1672853).

Almost surely, 2^13861629 is an apocalyptic number.

It is an amenable number.

13861629 is a deficient number, since it is larger than the sum of its proper divisors (6212607).

13861629 is a wasteful number, since it uses less digits than its factorization.

13861629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996 (or 3993 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 13861629 is about 3723.1208683039. The cubic root of 13861629 is about 240.2175631333.

The spelling of 13861629 in words is "thirteen million, eight hundred sixty-one thousand, six hundred twenty-nine".