997227 has 24 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 517680.

The previous prime is 997219. The next prime is 997247. The reversal of 997227 is 722799.

It is not a de Polignac number, because 997227 - 2³ = 997219 is a prime.

997227 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 997191 and 997200.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 997227.

It is not an unprimeable number, because it can be changed into a prime (997207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27 + ... + 1412.

It is an arithmetic number, because the mean of its divisors is an integer number (74880).

2⁹⁹⁷²²⁷ is an apocalyptic number.

997227 is a deficient number, since it is larger than the sum of its proper divisors (799893).

997227 is a wasteful number, since it uses less digits than its factorization.

997227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1460 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 997227 is about 998.6125374739. The cubic root of 997227 is about 99.9074810956.

It can be divided in two parts, 9972 and 27, that added together give a palindrome (9999).

The spelling of 997227 in words is "nine hundred ninety-seven thousand, two hundred twenty-seven".