3979946 has 4 divisors (see below), whose sum is σ = 5969922. Its totient is φ = 1989972.

The previous prime is 3979901. The next prime is 3979957. The reversal of 3979946 is 6499793.

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

It can be written as a sum of positive squares in only one way, i.e., 2758921 + 1221025 = 1661^2 + 1105^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3979946.

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, 994985 + ... + 994988.

Almost surely, 2^3979946 is an apocalyptic number.

3979946 is a deficient number, since it is larger than the sum of its proper divisors (1989976).

3979946 is a wasteful number, since it uses less digits than its factorization.

3979946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989975.

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

The square root of 3979946 is about 1994.9802004030. The cubic root of 3979946 is about 158.4743794564.

The spelling of 3979946 in words is "three million, nine hundred seventy-nine thousand, nine hundred forty-six".