84889449 has 12 divisors (see below), whose sum is σ = 129831156. Its totient is φ = 53263872.

The previous prime is 84889423. The next prime is 84889489. The reversal of 84889449 is 94498848.

It can be written as a sum of positive squares in 2 ways, for example, as 72590400 + 12299049 = 8520^2 + 3507^2 .

It is a de Polignac number, because none of the positive numbers 2^k-84889449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84889395 and 84889404.

It is not an unprimeable number, because it can be changed into a prime (84889489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277264 + ... + 277569.

It is an arithmetic number, because the mean of its divisors is an integer number (10819263).

Almost surely, 2^84889449 is an apocalyptic number.

It is an amenable number.

84889449 is a deficient number, since it is larger than the sum of its proper divisors (44941707).

84889449 is a wasteful number, since it uses less digits than its factorization.

84889449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554856 (or 554853 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 84889449 is about 9213.5470368366. The cubic root of 84889449 is about 439.4922672947.

The spelling of 84889449 in words is "eighty-four million, eight hundred eighty-nine thousand, four hundred forty-nine".