397441 has 4 divisors (see below), whose sum is σ = 433584. Its totient is φ = 361300.

The previous prime is 397433. The next prime is 397459. The reversal of 397441 is 144793.

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, and also an emirpimes, since its reverse is a distinct semiprime: 144793 = 11 ⋅13163.

It is a cyclic number.

It is not a de Polignac number, because 397441 - 2³ = 397433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18055 + ... + 18076.

It is an arithmetic number, because the mean of its divisors is an integer number (108396).

2³⁹⁷⁴⁴¹ is an apocalyptic number.

It is an amenable number.

397441 is a deficient number, since it is larger than the sum of its proper divisors (36143).

397441 is a wasteful number, since it uses less digits than its factorization.

397441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36142.

The product of its digits is 3024, while the sum is 28.

The square root of 397441 is about 630.4292188660. The cubic root of 397441 is about 73.5231697666.

It can be divided in two parts, 397 and 441, that added together give a palindrome (838).

The spelling of 397441 in words is "three hundred ninety-seven thousand, four hundred forty-one".