3989486 has 4 divisors (see below), whose sum is σ = 5984232. Its totient is φ = 1994742.

The previous prime is 3989477. The next prime is 3989519. The reversal of 3989486 is 6849893.

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 3989486.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997370 + ... + 997373.

It is an arithmetic number, because the mean of its divisors is an integer number (1496058).

Almost surely, 2^3989486 is an apocalyptic number.

3989486 is a deficient number, since it is larger than the sum of its proper divisors (1994746).

3989486 is a wasteful number, since it uses less digits than its factorization.

3989486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994745.

The product of its digits is 373248, while the sum is 47.

The square root of 3989486 is about 1997.3697704732. The cubic root of 3989486 is about 158.6009003700.

The spelling of 3989486 in words is "three million, nine hundred eighty-nine thousand, four hundred eighty-six".