849666274 has 12 divisors (see below), whose sum is σ = 1282261014. Its totient is φ = 422261504.

The previous prime is 849666229. The next prime is 849666287. The reversal of 849666274 is 472666948.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 815502249 + 34164025 = 28557^2 + 5845^2 .

It is an unprimeable number.

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, 48162 + ... + 63394.

Almost surely, 2^849666274 is an apocalyptic number.

849666274 is a deficient number, since it is larger than the sum of its proper divisors (432594740).

849666274 is a wasteful number, since it uses less digits than its factorization.

849666274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15569 (or 15402 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The square root of 849666274 is about 29149.0355586596. The cubic root of 849666274 is about 947.1442491775.

The spelling of 849666274 in words is "eight hundred forty-nine million, six hundred sixty-six thousand, two hundred seventy-four".