989414893 has 2 divisors, whose sum is σ = 989414894. Its totient is φ = 989414892.

The previous prime is 989414857. The next prime is 989415017. The reversal of 989414893 is 398414989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 953450884 + 35964009 = 30878^2 + 5997^2 .

It is a cyclic number.

It is not a de Polignac number, because 989414893 - 2⁹ = 989414381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989411893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494707446 + 494707447.

It is an arithmetic number, because the mean of its divisors is an integer number (494707447).

Almost surely, 2^989414893 is an apocalyptic number.

It is an amenable number.

989414893 is a deficient number, since it is larger than the sum of its proper divisors (1).

989414893 is an equidigital number, since it uses as much as digits as its factorization.

989414893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 55.

The square root of 989414893 is about 31454.9661102981. The cubic root of 989414893 is about 996.4591078815.

The spelling of 989414893 in words is "nine hundred eighty-nine million, four hundred fourteen thousand, eight hundred ninety-three".