3966290 has 8 divisors (see below), whose sum is σ = 7139340. Its totient is φ = 1586512.

The previous prime is 3966271. The next prime is 3966293. The reversal of 3966290 is 926693.

It can be written as a sum of positive squares in 2 ways, for example, as 3964081 + 2209 = 1991^2 + 47^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3966290.

It is not an unprimeable number, because it can be changed into a prime (3966293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198305 + ... + 198324.

Almost surely, 2^3966290 is an apocalyptic number.

3966290 is a deficient number, since it is larger than the sum of its proper divisors (3173050).

3966290 is a wasteful number, since it uses less digits than its factorization.

3966290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396636.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 3966290 is about 1991.5546690965. The cubic root of 3966290 is about 158.2929192021.

The spelling of 3966290 in words is "three million, nine hundred sixty-six thousand, two hundred ninety".