843495849 has 45 divisors (see below), whose sum is σ = 1468943751. Its totient is φ = 480952080.

The previous prime is 843495847. The next prime is 843495857. The reversal of 843495849 is 948594348.

The square root of 843495849 is 29043.

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

843495849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 270372249 + 573123600 = 16443^2 + 23940^2 .

It is not a de Polignac number, because 843495849 - 2¹ = 843495847 is a prime.

It is a super-2 number, since 2×843495849² = 1422970494560461602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 843495795 and 843495804.

It is not an unprimeable number, because it can be changed into a prime (843495847) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1829479 + ... + 1829939.

Almost surely, 2^843495849 is an apocalyptic number.

843495849 is the 29043-rd square number.

843495849 is the 14522-nd centered octagonal number.

It is an amenable number.

843495849 is a deficient number, since it is larger than the sum of its proper divisors (625447902).

843495849 is an frugal number, since it uses more digits than its factorization.

843495849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948 (or 471 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The cubic root of 843495849 is about 944.8459007987.

The spelling of 843495849 in words is "eight hundred forty-three million, four hundred ninety-five thousand, eight hundred forty-nine".