897457 has 6 divisors (see below), whose sum is σ = 986594. Its totient is φ = 815760.

The previous prime is 897443. The next prime is 897461. The reversal of 897457 is 754798.

It can be written as a sum of positive squares in only one way, i.e., 853776 + 43681 = 924^2 + 209^2 .

It is not a de Polignac number, because 897457 - 2⁷ = 897329 is a prime.

It is a Duffinian number.

897457 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3588 + ... + 3829.

2⁸⁹⁷⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

897457 is a deficient number, since it is larger than the sum of its proper divisors (89137).

897457 is a wasteful number, since it uses less digits than its factorization.

897457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7439 (or 7428 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 897457 is about 947.3420712710. The cubic root of 897457 is about 96.4579178823.

The spelling of 897457 in words is "eight hundred ninety-seven thousand, four hundred fifty-seven".