849434949 has 12 divisors (see below), whose sum is σ = 1338503712. Its totient is φ = 514809000.

The previous prime is 849434933. The next prime is 849434951. The reversal of 849434949 is 949434948.

It is not a de Polignac number, because 849434949 - 2⁴ = 849434933 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 849434895 and 849434904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849434959) 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 11 ways as a sum of consecutive naturals, for example, 4289977 + ... + 4290174.

It is an arithmetic number, because the mean of its divisors is an integer number (111541976).

Almost surely, 2^849434949 is an apocalyptic number.

It is an amenable number.

849434949 is a deficient number, since it is larger than the sum of its proper divisors (489068763).

849434949 is a wasteful number, since it uses less digits than its factorization.

849434949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8580168 (or 8580165 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 849434949 is about 29145.0673185018. The cubic root of 849434949 is about 947.0582867879.

Subtracting 849434949 from its reverse (949434948), we obtain a palindrome (99999999).

The spelling of 849434949 in words is "eight hundred forty-nine million, four hundred thirty-four thousand, nine hundred forty-nine".