897543827 has 2 divisors, whose sum is σ = 897543828. Its totient is φ = 897543826.

The previous prime is 897543821. The next prime is 897543877. The reversal of 897543827 is 728345798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 897543827 - 2⁶ = 897543763 is a prime.

It is not a weakly prime, because it can be changed into another prime (897543821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448771913 + 448771914.

It is an arithmetic number, because the mean of its divisors is an integer number (448771914).

Almost surely, 2^897543827 is an apocalyptic number.

897543827 is a deficient number, since it is larger than the sum of its proper divisors (1).

897543827 is an equidigital number, since it uses as much as digits as its factorization.

897543827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 53.

The square root of 897543827 is about 29959.0358155933. The cubic root of 897543827 is about 964.6102847942.

The spelling of 897543827 in words is "eight hundred ninety-seven million, five hundred forty-three thousand, eight hundred twenty-seven".