3985822 has 4 divisors (see below), whose sum is σ = 5978736. Its totient is φ = 1992910.

The previous prime is 3985777. The next prime is 3985829. The reversal of 3985822 is 2285893.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985829) 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 as a sum of consecutive naturals, namely, 996454 + ... + 996457.

It is an arithmetic number, because the mean of its divisors is an integer number (1494684).

Almost surely, 2^3985822 is an apocalyptic number.

3985822 is a deficient number, since it is larger than the sum of its proper divisors (1992914).

3985822 is a wasteful number, since it uses less digits than its factorization.

3985822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992913.

The product of its digits is 34560, while the sum is 37.

The square root of 3985822 is about 1996.4523535512. The cubic root of 3985822 is about 158.5523317331.

The spelling of 3985822 in words is "three million, nine hundred eighty-five thousand, eight hundred twenty-two".