3866766 has 32 divisors (see below), whose sum is σ = 8242560. Its totient is φ = 1205856.

The previous prime is 3866749. The next prime is 3866767. The reversal of 3866766 is 6676683.

Its product of digits (217728) is a multiple of the sum of its prime divisors (448).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12040 + ... + 12356.

It is an arithmetic number, because the mean of its divisors is an integer number (257580).

Almost surely, 2^3866766 is an apocalyptic number.

3866766 is an abundant number, since it is smaller than the sum of its proper divisors (4375794).

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

3866766 is a wasteful number, since it uses less digits than its factorization.

3866766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448.

The product of its digits is 217728, while the sum is 42.

The square root of 3866766 is about 1966.4094182036. The cubic root of 3866766 is about 156.9577015617.

The spelling of 3866766 in words is "three million, eight hundred sixty-six thousand, seven hundred sixty-six".