3986494 has 4 divisors (see below), whose sum is σ = 5979744. Its totient is φ = 1993246.

The previous prime is 3986473. The next prime is 3986497. The reversal of 3986494 is 4946893.

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 3986494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986497) 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, 996622 + ... + 996625.

It is an arithmetic number, because the mean of its divisors is an integer number (1494936).

Almost surely, 2^3986494 is an apocalyptic number.

3986494 is a deficient number, since it is larger than the sum of its proper divisors (1993250).

3986494 is a wasteful number, since it uses less digits than its factorization.

3986494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993249.

The product of its digits is 186624, while the sum is 43.

The square root of 3986494 is about 1996.6206449899. The cubic root of 3986494 is about 158.5612417463.

The spelling of 3986494 in words is "three million, nine hundred eighty-six thousand, four hundred ninety-four".