849774663 has 6 divisors (see below), whose sum is σ = 1227452304. Its totient is φ = 566516436.

The previous prime is 849774661. The next prime is 849774683. The reversal of 849774663 is 366477948.

It is a happy number.

It is not a de Polignac number, because 849774663 - 2¹ = 849774661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849774661) 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 5 ways as a sum of consecutive naturals, for example, 47209695 + ... + 47209712.

It is an arithmetic number, because the mean of its divisors is an integer number (204575384).

Almost surely, 2^849774663 is an apocalyptic number.

849774663 is a deficient number, since it is larger than the sum of its proper divisors (377677641).

849774663 is a wasteful number, since it uses less digits than its factorization.

849774663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94419413 (or 94419410 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The square root of 849774663 is about 29150.8947204027. The cubic root of 849774663 is about 947.1845221083.

The spelling of 849774663 in words is "eight hundred forty-nine million, seven hundred seventy-four thousand, six hundred sixty-three".