849188953 has 2 divisors, whose sum is σ = 849188954. Its totient is φ = 849188952.

The previous prime is 849188941. The next prime is 849188987. The reversal of 849188953 is 359881948.

849188953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640444249 + 208744704 = 25307^2 + 14448^2 .

It is a cyclic number.

It is not a de Polignac number, because 849188953 - 2⁹ = 849188441 is a prime.

It is a super-2 number, since 2×849188953² = 1442243755794472418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 849188894 and 849188903.

It is not a weakly prime, because it can be changed into another prime (849182953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424594476 + 424594477.

It is an arithmetic number, because the mean of its divisors is an integer number (424594477).

Almost surely, 2^849188953 is an apocalyptic number.

It is an amenable number.

849188953 is a deficient number, since it is larger than the sum of its proper divisors (1).

849188953 is an equidigital number, since it uses as much as digits as its factorization.

849188953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 55.

The square root of 849188953 is about 29140.8468133649. The cubic root of 849188953 is about 946.9668554021.

The spelling of 849188953 in words is "eight hundred forty-nine million, one hundred eighty-eight thousand, nine hundred fifty-three".