3897443 has 4 divisors (see below), whose sum is σ = 4251768. Its totient is φ = 3543120.

The previous prime is 3897409. The next prime is 3897449. The reversal of 3897443 is 3447983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3897443 - 2¹⁶ = 3831907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3897397 and 3897406.

It is not an unprimeable number, because it can be changed into a prime (3897449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177146 + ... + 177167.

It is an arithmetic number, because the mean of its divisors is an integer number (1062942).

Almost surely, 2^3897443 is an apocalyptic number.

3897443 is a deficient number, since it is larger than the sum of its proper divisors (354325).

3897443 is a wasteful number, since it uses less digits than its factorization.

3897443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354324.

The product of its digits is 72576, while the sum is 38.

The square root of 3897443 is about 1974.1942660235. The cubic root of 3897443 is about 157.3716835118.

The spelling of 3897443 in words is "three million, eight hundred ninety-seven thousand, four hundred forty-three".