3989822 has 4 divisors (see below), whose sum is σ = 5984736. Its totient is φ = 1994910.

The previous prime is 3989809. The next prime is 3989831. The reversal of 3989822 is 2289893.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3989822.

It is a congruent number.

It is an unprimeable number.

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, 997454 + ... + 997457.

It is an arithmetic number, because the mean of its divisors is an integer number (1496184).

Almost surely, 2^3989822 is an apocalyptic number.

3989822 is a deficient number, since it is larger than the sum of its proper divisors (1994914).

3989822 is a wasteful number, since it uses less digits than its factorization.

3989822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994913.

The product of its digits is 62208, while the sum is 41.

The square root of 3989822 is about 1997.4538793174. The cubic root of 3989822 is about 158.6053527737.

The spelling of 3989822 in words is "three million, nine hundred eighty-nine thousand, eight hundred twenty-two".