3999674 has 12 divisors (see below), whose sum is σ = 6979194. Its totient is φ = 1714104.

The previous prime is 3999661. The next prime is 3999683. The reversal of 3999674 is 4769993.

It can be written as a sum of positive squares in only one way, i.e., 2059225 + 1940449 = 1435^2 + 1393^2 .

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 in 5 ways as a sum of consecutive naturals, for example, 20309 + ... + 20504.

Almost surely, 2^3999674 is an apocalyptic number.

3999674 is a deficient number, since it is larger than the sum of its proper divisors (2979520).

3999674 is a wasteful number, since it uses less digits than its factorization.

3999674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40829 (or 40822 counting only the distinct ones).

The product of its digits is 367416, while the sum is 47.

The square root of 3999674 is about 1999.9184983394. The cubic root of 3999674 is about 158.7357926401.

The spelling of 3999674 in words is "three million, nine hundred ninety-nine thousand, six hundred seventy-four".