3821836 has 12 divisors (see below), whose sum is σ = 6708520. Its totient is φ = 1905120.

The previous prime is 3821827. The next prime is 3821837. The reversal of 3821836 is 6381283.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3821798 and 3821807.

It is not an unprimeable number, because it can be changed into a prime (3821837) 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, 256 + ... + 2776.

Almost surely, 2^3821836 is an apocalyptic number.

It is an amenable number.

3821836 is a deficient number, since it is larger than the sum of its proper divisors (2886684).

3821836 is a wasteful number, since it uses less digits than its factorization.

3821836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904 (or 2902 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 3821836 is about 1954.9516618065. The cubic root of 3821836 is about 156.3474067837.

The spelling of 3821836 in words is "three million, eight hundred twenty-one thousand, eight hundred thirty-six".