3966345 has 24 divisors (see below), whose sum is σ = 7238400. Its totient is φ = 2003616.

The previous prime is 3966331. The next prime is 3966349. The reversal of 3966345 is 5436693.

It is not a de Polignac number, because 3966345 - 2⁴ = 3966329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3966349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1465 + ... + 3174.

It is an arithmetic number, because the mean of its divisors is an integer number (301600).

Almost surely, 2^3966345 is an apocalyptic number.

It is an amenable number.

3966345 is a deficient number, since it is larger than the sum of its proper divisors (3272055).

3966345 is a wasteful number, since it uses less digits than its factorization.

3966345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669 (or 4666 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 3966345 is about 1991.5684773565. The cubic root of 3966345 is about 158.2936508741.

The spelling of 3966345 in words is "three million, nine hundred sixty-six thousand, three hundred forty-five".