849121273 has 16 divisors (see below), whose sum is σ = 1140080256. Its totient is φ = 610755840.

The previous prime is 849121187. The next prime is 849121283. The reversal of 849121273 is 372121948.

It is a cyclic number.

It is not a de Polignac number, because 849121273 - 2⁹ = 849120761 is a prime.

It is a super-2 number, since 2×849121273² = 1442013872522281058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (849121283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423136 + ... + 425137.

It is an arithmetic number, because the mean of its divisors is an integer number (71255016).

Almost surely, 2^849121273 is an apocalyptic number.

It is an amenable number.

849121273 is a deficient number, since it is larger than the sum of its proper divisors (290958983).

849121273 is a wasteful number, since it uses less digits than its factorization.

849121273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848304.

The product of its digits is 24192, while the sum is 37.

The square root of 849121273 is about 29139.6855336498. The cubic root of 849121273 is about 946.9416971146.

The spelling of 849121273 in words is "eight hundred forty-nine million, one hundred twenty-one thousand, two hundred seventy-three".