969897571 has 2 divisors, whose sum is σ = 969897572. Its totient is φ = 969897570.

The previous prime is 969897569. The next prime is 969897601. The reversal of 969897571 is 175798969.

It is a weak prime.

It is an emirp because it is prime and its reverse (175798969) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 969897571 - 2¹ = 969897569 is a prime.

Together with 969897569, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (969897671) 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, 484948785 + 484948786.

It is an arithmetic number, because the mean of its divisors is an integer number (484948786).

Almost surely, 2^969897571 is an apocalyptic number.

969897571 is a deficient number, since it is larger than the sum of its proper divisors (1).

969897571 is an equidigital number, since it uses as much as digits as its factorization.

969897571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8573040, while the sum is 61.

The square root of 969897571 is about 31143.1785628892. The cubic root of 969897571 is about 989.8634546230.

The spelling of 969897571 in words is "nine hundred sixty-nine million, eight hundred ninety-seven thousand, five hundred seventy-one".