3821147 has 16 divisors (see below), whose sum is σ = 4492800. Its totient is φ = 3212640.

The previous prime is 3821137. The next prime is 3821171. The reversal of 3821147 is 7411283.

It is a cyclic number.

It is not a de Polignac number, because 3821147 - 2⁴ = 3821131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3821117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9629 + ... + 10017.

It is an arithmetic number, because the mean of its divisors is an integer number (280800).

Almost surely, 2^3821147 is an apocalyptic number.

3821147 is a deficient number, since it is larger than the sum of its proper divisors (671653).

3821147 is a wasteful number, since it uses less digits than its factorization.

3821147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466.

The product of its digits is 1344, while the sum is 26.

The square root of 3821147 is about 1954.7754346727. The cubic root of 3821147 is about 156.3380107903.

The spelling of 3821147 in words is "three million, eight hundred twenty-one thousand, one hundred forty-seven".