849215492 has 6 divisors (see below), whose sum is σ = 1486127118. Its totient is φ = 424607744.

The previous prime is 849215473. The next prime is 849215509. The reversal of 849215492 is 294512948.

It can be written as a sum of positive squares in only one way, i.e., 847042816 + 2172676 = 29104^2 + 1474^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106151933 + ... + 106151940.

It is an arithmetic number, because the mean of its divisors is an integer number (247687853).

Almost surely, 2^849215492 is an apocalyptic number.

It is an amenable number.

849215492 is a deficient number, since it is larger than the sum of its proper divisors (636911626).

849215492 is a wasteful number, since it uses less digits than its factorization.

849215492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212303877 (or 212303875 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 849215492 is about 29141.3021671990. The cubic root of 849215492 is about 946.9767202233.

The spelling of 849215492 in words is "eight hundred forty-nine million, two hundred fifteen thousand, four hundred ninety-two".