3966766 has 4 divisors (see below), whose sum is σ = 5950152. Its totient is φ = 1983382.

The previous prime is 3966761. The next prime is 3966773. The reversal of 3966766 is 6676693.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991690 + ... + 991693.

It is an arithmetic number, because the mean of its divisors is an integer number (1487538).

Almost surely, 2^3966766 is an apocalyptic number.

3966766 is a deficient number, since it is larger than the sum of its proper divisors (1983386).

3966766 is a wasteful number, since it uses less digits than its factorization.

3966766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983385.

The product of its digits is 244944, while the sum is 43.

The square root of 3966766 is about 1991.6741701393. The cubic root of 3966766 is about 158.2992512668.

The spelling of 3966766 in words is "three million, nine hundred sixty-six thousand, seven hundred sixty-six".