3947306 has 32 divisors (see below), whose sum is σ = 6998400. Its totient is φ = 1650880.

The previous prime is 3947299. The next prime is 3947309. The reversal of 3947306 is 6037493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14540 + ... + 14808.

It is an arithmetic number, because the mean of its divisors is an integer number (218700).

Almost surely, 2^3947306 is an apocalyptic number.

3947306 is a deficient number, since it is larger than the sum of its proper divisors (3051094).

3947306 is a wasteful number, since it uses less digits than its factorization.

3947306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 3947306 is about 1986.7828265817. The cubic root of 3947306 is about 158.0399674567.

The spelling of 3947306 in words is "three million, nine hundred forty-seven thousand, three hundred six".