3947330 has 8 divisors (see below), whose sum is σ = 7105212. Its totient is φ = 1578928.

The previous prime is 3947327. The next prime is 3947351. The reversal of 3947330 is 337493.

3947330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3418801 + 528529 = 1849^2 + 727^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3947293 and 3947302.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 197357 + ... + 197376.

Almost surely, 2^3947330 is an apocalyptic number.

3947330 is a deficient number, since it is larger than the sum of its proper divisors (3157882).

3947330 is a wasteful number, since it uses less digits than its factorization.

3947330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394740.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 3947330 is about 1986.7888664878. The cubic root of 3947330 is about 158.0402877555.

The spelling of 3947330 in words is "three million, nine hundred forty-seven thousand, three hundred thirty".