997441 has 8 divisors (see below), whose sum is σ = 1102464. Its totient is φ = 897600.

The previous prime is 997439. The next prime is 997453. The reversal of 997441 is 144799.

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

It is not a de Polignac number, because 997441 - 2¹ = 997439 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 997397 and 997406.

It is not an unprimeable number, because it can be changed into a prime (997141) 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, 885 + ... + 1666.

It is an arithmetic number, because the mean of its divisors is an integer number (137808).

2⁹⁹⁷⁴⁴¹ is an apocalyptic number.

It is an amenable number.

997441 is a deficient number, since it is larger than the sum of its proper divisors (105023).

997441 is a wasteful number, since it uses less digits than its factorization.

997441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591.

The product of its digits is 9072, while the sum is 34.

The square root of 997441 is about 998.7196803908. The cubic root of 997441 is about 99.9146271355.

The spelling of 997441 in words is "nine hundred ninety-seven thousand, four hundred forty-one".