849949025 has 6 divisors (see below), whose sum is σ = 1053936822. Its totient is φ = 679959200.

The previous prime is 849949007. The next prime is 849949039. The reversal of 849949025 is 520949948.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 27636049 + 822312976 = 5257^2 + 28676^2 .

It is not a de Polignac number, because 849949025 - 2⁶ = 849948961 is a prime.

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 16998956 + ... + 16999005.

It is an arithmetic number, because the mean of its divisors is an integer number (175656137).

Almost surely, 2^849949025 is an apocalyptic number.

It is an amenable number.

849949025 is a deficient number, since it is larger than the sum of its proper divisors (203987797).

849949025 is a wasteful number, since it uses less digits than its factorization.

849949025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33997971 (or 33997966 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 849949025 is about 29153.8852470816. The cubic root of 849949025 is about 947.2493007296.

The spelling of 849949025 in words is "eight hundred forty-nine million, nine hundred forty-nine thousand, twenty-five".