849989670 has 16 divisors (see below), whose sum is σ = 2039975280. Its totient is φ = 226663904.

The previous prime is 849989669. The next prime is 849989683. The reversal of 849989670 is 76989948.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 14166465 + ... + 14166524.

It is an arithmetic number, because the mean of its divisors is an integer number (127498455).

Almost surely, 2^849989670 is an apocalyptic number.

849989670 is an abundant number, since it is smaller than the sum of its proper divisors (1189985610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849989670 is a wasteful number, since it uses less digits than its factorization.

849989670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28332999.

The product of its (nonzero) digits is 7838208, while the sum is 60.

The square root of 849989670 is about 29154.5823156498. The cubic root of 849989670 is about 947.2643998053.

The spelling of 849989670 in words is "eight hundred forty-nine million, nine hundred eighty-nine thousand, six hundred seventy".