3681826 has 8 divisors (see below), whose sum is σ = 5847660. Its totient is φ = 1732608.

The previous prime is 3681823. The next prime is 3681827. The reversal of 3681826 is 6281863.

It can be written as a sum of positive squares in 2 ways, for example, as 3606201 + 75625 = 1899^2 + 275^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 108289 = 3681826 / (3 + 6 + 8 + 1 + 8 + 2 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 3681791 and 3681800.

It is not an unprimeable number, because it can be changed into a prime (3681823) 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, 54111 + ... + 54178.

Almost surely, 2^3681826 is an apocalyptic number.

3681826 is a deficient number, since it is larger than the sum of its proper divisors (2165834).

3681826 is a wasteful number, since it uses less digits than its factorization.

3681826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108308.

The product of its digits is 13824, while the sum is 34.

The square root of 3681826 is about 1918.8084844507. The cubic root of 3681826 is about 154.4143840573.

The spelling of 3681826 in words is "three million, six hundred eighty-one thousand, eight hundred twenty-six".