3809966 has 16 divisors (see below), whose sum is σ = 5927040. Its totient is φ = 1835520.

The previous prime is 3809963. The next prime is 3809977. The reversal of 3809966 is 6699083.

3809966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3809963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7715 + ... + 8193.

It is an arithmetic number, because the mean of its divisors is an integer number (370440).

Almost surely, 2^3809966 is an apocalyptic number.

3809966 is a deficient number, since it is larger than the sum of its proper divisors (2117074).

3809966 is a wasteful number, since it uses less digits than its factorization.

3809966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 3809966 is about 1951.9134202111. The cubic root of 3809966 is about 156.1853757287.

The spelling of 3809966 in words is "three million, eight hundred nine thousand, nine hundred sixty-six".