3947180 has 12 divisors (see below), whose sum is σ = 8289120. Its totient is φ = 1578864.

The previous prime is 3947173. The next prime is 3947189. The reversal of 3947180 is 817493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947189) 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, 98660 + ... + 98699.

It is an arithmetic number, because the mean of its divisors is an integer number (690760).

Almost surely, 2^3947180 is an apocalyptic number.

It is an amenable number.

3947180 is an abundant number, since it is smaller than the sum of its proper divisors (4341940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3947180 is a wasteful number, since it uses less digits than its factorization.

3947180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197368 (or 197366 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 3947180 is about 1986.7511167733. The cubic root of 3947180 is about 158.0382858670.

The spelling of 3947180 in words is "three million, nine hundred forty-seven thousand, one hundred eighty".