3947371 has 8 divisors (see below), whose sum is σ = 4046864. Its totient is φ = 3849120.

The previous prime is 3947369. The next prime is 3947401. The reversal of 3947371 is 1737493.

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

It is a cyclic number.

It is not a de Polignac number, because 3947371 - 2¹ = 3947369 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (3947311) 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, 9745 + ... + 10141.

It is an arithmetic number, because the mean of its divisors is an integer number (505858).

Almost surely, 2^3947371 is an apocalyptic number.

3947371 is a deficient number, since it is larger than the sum of its proper divisors (99493).

3947371 is a wasteful number, since it uses less digits than its factorization.

3947371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621.

The product of its digits is 15876, while the sum is 34.

The square root of 3947371 is about 1986.7991846183. The cubic root of 3947371 is about 158.0408349295.

The spelling of 3947371 in words is "three million, nine hundred forty-seven thousand, three hundred seventy-one".