4397443 has 4 divisors (see below), whose sum is σ = 4539328. Its totient is φ = 4255560.

The previous prime is 4397431. The next prime is 4397453. The reversal of 4397443 is 3447934.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4397443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4397399 and 4397408.

It is not an unprimeable number, because it can be changed into a prime (4397453) 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, 70896 + ... + 70957.

It is an arithmetic number, because the mean of its divisors is an integer number (1134832).

Almost surely, 2^4397443 is an apocalyptic number.

4397443 is a deficient number, since it is larger than the sum of its proper divisors (141885).

4397443 is a wasteful number, since it uses less digits than its factorization.

4397443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141884.

The product of its digits is 36288, while the sum is 34.

The square root of 4397443 is about 2097.0081068036. The cubic root of 4397443 is about 163.8325054770.

Subtracting from 4397443 its sum of digits (34), we obtain a square (4397409 = 2097²).

The spelling of 4397443 in words is "four million, three hundred ninety-seven thousand, four hundred forty-three".