3994516 has 6 divisors (see below), whose sum is σ = 6990410. Its totient is φ = 1997256.

The previous prime is 3994513. The next prime is 3994537. The reversal of 3994516 is 6154993.

It can be written as a sum of positive squares in only one way, i.e., 3818116 + 176400 = 1954^2 + 420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994513) 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, 499311 + ... + 499318.

Almost surely, 2^3994516 is an apocalyptic number.

It is an amenable number.

3994516 is a deficient number, since it is larger than the sum of its proper divisors (2995894).

3994516 is a wasteful number, since it uses less digits than its factorization.

3994516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998633 (or 998631 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The square root of 3994516 is about 1998.6285297674. The cubic root of 3994516 is about 158.6675277908.

The spelling of 3994516 in words is "three million, nine hundred ninety-four thousand, five hundred sixteen".