849256163 has 32 divisors (see below), whose sum is σ = 1030428672. Its totient is φ = 684288000.

The previous prime is 849256159. The next prime is 849256201. The reversal of 849256163 is 361652948.

It is a Cunningham number, because it is equal to 29142²-1.

It is a cyclic number.

It is not a de Polignac number, because 849256163 - 2² = 849256159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (849256123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4400195 + ... + 4400387.

It is an arithmetic number, because the mean of its divisors is an integer number (32200896).

Almost surely, 2^849256163 is an apocalyptic number.

849256163 is a deficient number, since it is larger than the sum of its proper divisors (181172509).

849256163 is a wasteful number, since it uses less digits than its factorization.

849256163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555.

The product of its digits is 311040, while the sum is 44.

The square root of 849256163 is about 29141.9999828426. Note that the first 4 decimals coincide. The cubic root of 849256163 is about 946.9918376565.

The spelling of 849256163 in words is "eight hundred forty-nine million, two hundred fifty-six thousand, one hundred sixty-three".