3966697 has 6 divisors (see below), whose sum is σ = 4614378. Its totient is φ = 3399984.

The previous prime is 3966691. The next prime is 3966701. The reversal of 3966697 is 7966693.

It can be written as a sum of positive squares in only one way, i.e., 2893401 + 1073296 = 1701^2 + 1036^2 .

It is not a de Polignac number, because 3966697 - 2³ = 3966689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3966691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40428 + ... + 40525.

It is an arithmetic number, because the mean of its divisors is an integer number (769063).

Almost surely, 2^3966697 is an apocalyptic number.

It is an amenable number.

3966697 is a deficient number, since it is larger than the sum of its proper divisors (647681).

3966697 is an equidigital number, since it uses as much as digits as its factorization.

3966697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80967 (or 80960 counting only the distinct ones).

The product of its digits is 367416, while the sum is 46.

The square root of 3966697 is about 1991.6568479535. The cubic root of 3966697 is about 158.2983334149.

The spelling of 3966697 in words is "three million, nine hundred sixty-six thousand, six hundred ninety-seven".