8354989 has 2 divisors, whose sum is σ = 8354990. Its totient is φ = 8354988.

The previous prime is 8354977. The next prime is 8354993. The reversal of 8354989 is 9894538.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5522500 + 2832489 = 2350^2 + 1683^2 .

It is a cyclic number.

It is not a de Polignac number, because 8354989 - 2⁹ = 8354477 is a prime.

It is a Chen prime.

8354989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8354999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4177494 + 4177495.

It is an arithmetic number, because the mean of its divisors is an integer number (4177495).

Almost surely, 2^8354989 is an apocalyptic number.

It is an amenable number.

8354989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8354989 is an equidigital number, since it uses as much as digits as its factorization.

8354989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 8354989 is about 2890.4997837744. The cubic root of 8354989 is about 202.9155334646.

It can be divided in two parts, 83549 and 89, that added together give a palindrome (83638).

The spelling of 8354989 in words is "eight million, three hundred fifty-four thousand, nine hundred eighty-nine".