914849989 has 2 divisors, whose sum is σ = 914849990. Its totient is φ = 914849988.

The previous prime is 914849939. The next prime is 914850007. The reversal of 914849989 is 989948419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 851647489 + 63202500 = 29183^2 + 7950^2 .

It is an emirp because it is prime and its reverse (989948419) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 914849989 - 2¹⁵ = 914817221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (914849939) 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, 457424994 + 457424995.

It is an arithmetic number, because the mean of its divisors is an integer number (457424995).

Almost surely, 2^914849989 is an apocalyptic number.

It is an amenable number.

914849989 is a deficient number, since it is larger than the sum of its proper divisors (1).

914849989 is an equidigital number, since it uses as much as digits as its factorization.

914849989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6718464, while the sum is 61.

The square root of 914849989 is about 30246.4872175266. The cubic root of 914849989 is about 970.7706310887.

The spelling of 914849989 in words is "nine hundred fourteen million, eight hundred forty-nine thousand, nine hundred eighty-nine".