897387871 has 2 divisors, whose sum is σ = 897387872. Its totient is φ = 897387870.

The previous prime is 897387863. The next prime is 897387893. The reversal of 897387871 is 178783798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 897387871 - 2³ = 897387863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897388871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448693935 + 448693936.

It is an arithmetic number, because the mean of its divisors is an integer number (448693936).

Almost surely, 2^897387871 is an apocalyptic number.

897387871 is a deficient number, since it is larger than the sum of its proper divisors (1).

897387871 is an equidigital number, since it uses as much as digits as its factorization.

897387871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4741632, while the sum is 58.

The square root of 897387871 is about 29956.4328817702. The cubic root of 897387871 is about 964.5544117657.

The spelling of 897387871 in words is "eight hundred ninety-seven million, three hundred eighty-seven thousand, eight hundred seventy-one".