997271 has 8 divisors (see below), whose sum is σ = 1152144. Its totient is φ = 853120.

The previous prime is 997267. The next prime is 997273. The reversal of 997271 is 172799.

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

It is a cyclic number.

It is not a de Polignac number, because 997271 - 2² = 997267 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997273) 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, 2480 + ... + 2853.

It is an arithmetic number, because the mean of its divisors is an integer number (144018).

2⁹⁹⁷²⁷¹ is an apocalyptic number.

997271 is a deficient number, since it is larger than the sum of its proper divisors (154873).

997271 is a wasteful number, since it uses less digits than its factorization.

997271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361.

The product of its digits is 7938, while the sum is 35.

The square root of 997271 is about 998.6345677975. The cubic root of 997271 is about 99.9089504583.

The spelling of 997271 in words is "nine hundred ninety-seven thousand, two hundred seventy-one".