897289 has 4 divisors (see below), whose sum is σ = 928260. Its totient is φ = 866320.

The previous prime is 897271. The next prime is 897301. The reversal of 897289 is 982798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 360000 + 537289 = 600^2 + 733^2 .

It is a cyclic number.

It is not a de Polignac number, because 897289 - 2¹¹ = 895241 is a prime.

It is a d-powerful number, because it can be written as 8⁴ + 9 + 2¹⁶ + 7⁷ + 8⁴ + 9 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15442 + ... + 15499.

It is an arithmetic number, because the mean of its divisors is an integer number (232065).

2⁸⁹⁷²⁸⁹ is an apocalyptic number.

It is an amenable number.

897289 is a deficient number, since it is larger than the sum of its proper divisors (30971).

897289 is a wasteful number, since it uses less digits than its factorization.

897289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30970.

The product of its digits is 72576, while the sum is 43.

The square root of 897289 is about 947.2533979881. The cubic root of 897289 is about 96.4518986741.

The spelling of 897289 in words is "eight hundred ninety-seven thousand, two hundred eighty-nine".