3966879 has 32 divisors (see below), whose sum is σ = 6488064. Its totient is φ = 2106720.

The previous prime is 3966871. The next prime is 3966883. The reversal of 3966879 is 9786693.

It is a happy number.

It is not a de Polignac number, because 3966879 - 2³ = 3966871 is a prime.

It is a super-2 number, since 2×3966879² = 31472258001282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20674 + ... + 20864.

It is an arithmetic number, because the mean of its divisors is an integer number (202752).

Almost surely, 2^3966879 is an apocalyptic number.

3966879 is a deficient number, since it is larger than the sum of its proper divisors (2521185).

3966879 is a wasteful number, since it uses less digits than its factorization.

3966879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267.

The product of its digits is 489888, while the sum is 48.

The square root of 3966879 is about 1991.7025380312. The cubic root of 3966879 is about 158.3007543927.

The spelling of 3966879 in words is "three million, nine hundred sixty-six thousand, eight hundred seventy-nine".