849489316 has 81 divisors (see below), whose sum is σ = 1728224001. Its totient is φ = 365141088.

The previous prime is 849489301. The next prime is 849489317. The reversal of 849489316 is 613984948.

It is a happy number.

The square root of 849489316 is 29146.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 125664100 + 723825216 = 11210^2 + 26904^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849489317) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 14398095 + ... + 14398153.

Almost surely, 2^849489316 is an apocalyptic number.

849489316 is the 29146-th square number.

It is an amenable number.

849489316 is an abundant number, since it is smaller than the sum of its proper divisors (878734685).

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

849489316 is a wasteful number, since it uses less digits than its factorization.

849489316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 93 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The cubic root of 849489316 is about 947.0784914426.

The spelling of 849489316 in words is "eight hundred forty-nine million, four hundred eighty-nine thousand, three hundred sixteen".