897971 has 2 divisors, whose sum is σ = 897972. Its totient is φ = 897970.

The previous prime is 897947. The next prime is 897983. The reversal of 897971 is 179798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 897971 - 2⁶ = 897907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (897931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448985 + 448986.

It is an arithmetic number, because the mean of its divisors is an integer number (448986).

2⁸⁹⁷⁹⁷¹ is an apocalyptic number.

897971 is a deficient number, since it is larger than the sum of its proper divisors (1).

897971 is an equidigital number, since it uses as much as digits as its factorization.

897971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 41.

The square root of 897971 is about 947.6133177621. The cubic root of 897971 is about 96.4763291293.

It can be divided in two parts, 89797 and 1, that added together give a palindrome (89798).

The spelling of 897971 in words is "eight hundred ninety-seven thousand, nine hundred seventy-one".