3947366 has 8 divisors (see below), whose sum is σ = 6269400. Its totient is φ = 1857568.

The previous prime is 3947353. The next prime is 3947369. The reversal of 3947366 is 6637493.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58016 + ... + 58083.

It is an arithmetic number, because the mean of its divisors is an integer number (783675).

Almost surely, 2^3947366 is an apocalyptic number.

3947366 is a deficient number, since it is larger than the sum of its proper divisors (2322034).

3947366 is a wasteful number, since it uses less digits than its factorization.

3947366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116118.

The product of its digits is 81648, while the sum is 38.

The square root of 3947366 is about 1986.7979263126. The cubic root of 3947366 is about 158.0407682012.

The spelling of 3947366 in words is "three million, nine hundred forty-seven thousand, three hundred sixty-six".