897984611 has 2 divisors, whose sum is σ = 897984612. Its totient is φ = 897984610.

The previous prime is 897984569. The next prime is 897984613. The reversal of 897984611 is 116489798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 897984611 - 2¹⁰ = 897983587 is a prime.

Together with 897984613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (897984613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448992305 + 448992306.

It is an arithmetic number, because the mean of its divisors is an integer number (448992306).

Almost surely, 2^897984611 is an apocalyptic number.

897984611 is a deficient number, since it is larger than the sum of its proper divisors (1).

897984611 is an equidigital number, since it uses as much as digits as its factorization.

897984611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 53.

The square root of 897984611 is about 29966.3913576527. The cubic root of 897984611 is about 964.7681657367.

The spelling of 897984611 in words is "eight hundred ninety-seven million, nine hundred eighty-four thousand, six hundred eleven".