3879966 has 16 divisors (see below), whose sum is σ = 7887888. Its totient is φ = 1272000.

The previous prime is 3879959. The next prime is 3879979. The reversal of 3879966 is 6699783.

It is a happy number.

It is a super-2 number, since 2×3879966² = 30108272322312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4935 + ... + 5666.

It is an arithmetic number, because the mean of its divisors is an integer number (492993).

Almost surely, 2^3879966 is an apocalyptic number.

3879966 is an abundant number, since it is smaller than the sum of its proper divisors (4007922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3879966 is a wasteful number, since it uses less digits than its factorization.

3879966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10667.

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

The square root of 3879966 is about 1969.7629298979. The cubic root of 3879966 is about 157.1361011657.

The spelling of 3879966 in words is "three million, eight hundred seventy-nine thousand, nine hundred sixty-six".