3873966 has 8 divisors (see below), whose sum is σ = 7747944. Its totient is φ = 1291320.

The previous prime is 3873941. The next prime is 3873983. The reversal of 3873966 is 6693783.

It is a sphenic number, since it is the product of 3 distinct primes.

3873966 is an admirable number.

It is a super-2 number, since 2×3873966² = 30015225138312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 322825 + ... + 322836.

It is an arithmetic number, because the mean of its divisors is an integer number (968493).

Almost surely, 2^3873966 is an apocalyptic number.

3873966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3873966 is a wasteful number, since it uses less digits than its factorization.

3873966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645666.

The product of its digits is 163296, while the sum is 42.

The square root of 3873966 is about 1968.2393147176. The cubic root of 3873966 is about 157.0550606774.

The spelling of 3873966 in words is "three million, eight hundred seventy-three thousand, nine hundred sixty-six".