3946979 has 4 divisors (see below), whose sum is σ = 3986160. Its totient is φ = 3907800.

The previous prime is 3946939. The next prime is 3946981. The reversal of 3946979 is 9796493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9796493 = 7 ⋅1399499.

It is a cyclic number.

It is not a de Polignac number, because 3946979 - 2¹⁶ = 3881443 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3946939) 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 in 3 ways as a sum of consecutive naturals, for example, 19439 + ... + 19640.

It is an arithmetic number, because the mean of its divisors is an integer number (996540).

Almost surely, 2^3946979 is an apocalyptic number.

3946979 is a deficient number, since it is larger than the sum of its proper divisors (39181).

3946979 is a wasteful number, since it uses less digits than its factorization.

3946979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39180.

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

The square root of 3946979 is about 1986.7005310313. The cubic root of 3946979 is about 158.0356032569.

The spelling of 3946979 in words is "three million, nine hundred forty-six thousand, nine hundred seventy-nine".