3681634 has 16 divisors (see below), whose sum is σ = 6111936. Its totient is φ = 1649200.

The previous prime is 3681619. The next prime is 3681683. The reversal of 3681634 is 4361863.

It is a junction number, because it is equal to n+sod(n) for n = 3681596 and 3681605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384 + ... + 2740.

It is an arithmetic number, because the mean of its divisors is an integer number (381996).

Almost surely, 2^3681634 is an apocalyptic number.

3681634 is a deficient number, since it is larger than the sum of its proper divisors (2430302).

3681634 is a wasteful number, since it uses less digits than its factorization.

3681634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441.

The product of its digits is 10368, while the sum is 31.

The square root of 3681634 is about 1918.7584527501. The cubic root of 3681634 is about 154.4116998749.

It can be divided in two parts, 368 and 1634, that added together give a palindrome (2002).

The spelling of 3681634 in words is "three million, six hundred eighty-one thousand, six hundred thirty-four".