3947416 has 32 divisors (see below), whose sum is σ = 8340480. Its totient is φ = 1735200.

The previous prime is 3947413. The next prime is 3947431. The reversal of 3947416 is 6147493.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005 + ... + 3451.

It is an arithmetic number, because the mean of its divisors is an integer number (260640).

Almost surely, 2^3947416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3947416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4170240).

3947416 is an abundant number, since it is smaller than the sum of its proper divisors (4393064).

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

3947416 is a wasteful number, since it uses less digits than its factorization.

3947416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495 (or 1491 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 3947416 is about 1986.8105093340. The cubic root of 3947416 is about 158.0414354820.

The spelling of 3947416 in words is "three million, nine hundred forty-seven thousand, four hundred sixteen".