973897 has 2 divisors, whose sum is σ = 973898. Its totient is φ = 973896.

The previous prime is 973891. The next prime is 973901. The reversal of 973897 is 798379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 594441 + 379456 = 771^2 + 616^2 .

It is a cyclic number.

It is not a de Polignac number, because 973897 - 2¹⁹ = 449609 is a prime.

973897 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (973891) 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 as a sum of consecutive naturals, namely, 486948 + 486949.

It is an arithmetic number, because the mean of its divisors is an integer number (486949).

2⁹⁷³⁸⁹⁷ is an apocalyptic number.

973897 is the 528-th centered heptagonal number.

It is an amenable number.

973897 is a deficient number, since it is larger than the sum of its proper divisors (1).

973897 is an equidigital number, since it uses as much as digits as its factorization.

973897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 43.

The square root of 973897 is about 986.8621990937. The cubic root of 973897 is about 99.1222175237.

The spelling of 973897 in words is "nine hundred seventy-three thousand, eight hundred ninety-seven".