898664887 has 2 divisors, whose sum is σ = 898664888. Its totient is φ = 898664886.

The previous prime is 898664881. The next prime is 898664953. The reversal of 898664887 is 788466898.

898664887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 898664887 - 2⁷ = 898664759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (898664881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449332443 + 449332444.

It is an arithmetic number, because the mean of its divisors is an integer number (449332444).

Almost surely, 2^898664887 is an apocalyptic number.

898664887 is a deficient number, since it is larger than the sum of its proper divisors (1).

898664887 is an equidigital number, since it uses as much as digits as its factorization.

898664887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37158912, while the sum is 64.

The square root of 898664887 is about 29977.7398581014. The cubic root of 898664887 is about 965.0117270627.

The spelling of 898664887 in words is "eight hundred ninety-eight million, six hundred sixty-four thousand, eight hundred eighty-seven".