3905966 has 16 divisors (see below), whose sum is σ = 6025344. Its totient is φ = 1898424.

The previous prime is 3905953. The next prime is 3905987. The reversal of 3905966 is 6695093.

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, 13661 + ... + 13943.

It is an arithmetic number, because the mean of its divisors is an integer number (376584).

Almost surely, 2^3905966 is an apocalyptic number.

3905966 is a deficient number, since it is larger than the sum of its proper divisors (2119378).

3905966 is a wasteful number, since it uses less digits than its factorization.

3905966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 3905966 is about 1976.3516893509. The cubic root of 3905966 is about 157.4863144235.

The spelling of 3905966 in words is "three million, nine hundred five thousand, nine hundred sixty-six".