3947201 has 4 divisors (see below), whose sum is σ = 4031232. Its totient is φ = 3863172.

The previous prime is 3947189. The next prime is 3947227. The reversal of 3947201 is 1027493.

3947201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3947201 - 2¹⁰ = 3946177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3947101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41945 + ... + 42038.

It is an arithmetic number, because the mean of its divisors is an integer number (1007808).

Almost surely, 2^3947201 is an apocalyptic number.

It is an amenable number.

3947201 is a deficient number, since it is larger than the sum of its proper divisors (84031).

3947201 is an equidigital number, since it uses as much as digits as its factorization.

3947201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84030.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 3947201 is about 1986.7564017765. The cubic root of 3947201 is about 158.0385661344.

The spelling of 3947201 in words is "three million, nine hundred forty-seven thousand, two hundred one".