989716201 has 2 divisors, whose sum is σ = 989716202. Its totient is φ = 989716200.

The previous prime is 989716193. The next prime is 989716229. The reversal of 989716201 is 102617989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734355801 + 255360400 = 27099^2 + 15980^2 .

It is a cyclic number.

It is not a de Polignac number, because 989716201 - 2³ = 989716193 is a prime.

It is not a weakly prime, because it can be changed into another prime (989716241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494858100 + 494858101.

It is an arithmetic number, because the mean of its divisors is an integer number (494858101).

Almost surely, 2^989716201 is an apocalyptic number.

It is an amenable number.

989716201 is a deficient number, since it is larger than the sum of its proper divisors (1).

989716201 is an equidigital number, since it uses as much as digits as its factorization.

989716201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 989716201 is about 31459.7552596965. The cubic root of 989716201 is about 996.5602486771.

The spelling of 989716201 in words is "nine hundred eighty-nine million, seven hundred sixteen thousand, two hundred one".