9854989 has 2 divisors, whose sum is σ = 9854990. Its totient is φ = 9854988.

The previous prime is 9854981. The next prime is 9855011. The reversal of 9854989 is 9894589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7022500 + 2832489 = 2650^2 + 1683^2 .

It is a cyclic number.

It is not a de Polignac number, because 9854989 - 2³ = 9854981 is a prime.

It is an alternating number because its digits alternate between odd and even.

9854989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9854981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4927494 + 4927495.

It is an arithmetic number, because the mean of its divisors is an integer number (4927495).

Almost surely, 2^9854989 is an apocalyptic number.

It is an amenable number.

9854989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9854989 is an equidigital number, since it uses as much as digits as its factorization.

9854989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 52.

The square root of 9854989 is about 3139.2656784669. The cubic root of 9854989 is about 214.3970051955.

The spelling of 9854989 in words is "nine million, eight hundred fifty-four thousand, nine hundred eighty-nine".