897497 has 2 divisors, whose sum is σ = 897498. Its totient is φ = 897496.

The previous prime is 897473. The next prime is 897499. The reversal of 897497 is 794798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524176 + 373321 = 724^2 + 611^2 .

It is a cyclic number.

It is not a de Polignac number, because 897497 - 2⁶ = 897433 is a prime.

Together with 897499, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (897499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448748 + 448749.

It is an arithmetic number, because the mean of its divisors is an integer number (448749).

2⁸⁹⁷⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

897497 is a deficient number, since it is larger than the sum of its proper divisors (1).

897497 is an equidigital number, since it uses as much as digits as its factorization.

897497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 44.

The square root of 897497 is about 947.3631827341. The cubic root of 897497 is about 96.4593509164.

The spelling of 897497 in words is "eight hundred ninety-seven thousand, four hundred ninety-seven".