898559971 has 2 divisors, whose sum is σ = 898559972. Its totient is φ = 898559970.

The previous prime is 898559957. The next prime is 898560001. The reversal of 898559971 is 179955898.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 898559971 - 2²⁵ = 865005539 is a prime.

It is not a weakly prime, because it can be changed into another prime (898559941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449279985 + 449279986.

It is an arithmetic number, because the mean of its divisors is an integer number (449279986).

Almost surely, 2^898559971 is an apocalyptic number.

898559971 is a deficient number, since it is larger than the sum of its proper divisors (1).

898559971 is an equidigital number, since it uses as much as digits as its factorization.

898559971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 61.

The square root of 898559971 is about 29975.9899085918. The cubic root of 898559971 is about 964.9741716802.

The spelling of 898559971 in words is "eight hundred ninety-eight million, five hundred fifty-nine thousand, nine hundred seventy-one".