849639366 has 48 divisors (see below), whose sum is σ = 1929747456. Its totient is φ = 269655408.

The previous prime is 849639337. The next prime is 849639383. The reversal of 849639366 is 663936948.

It is a happy number.

849639366 is a `hidden beast` number, since 8 + 496 + 3 + 93 + 66 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87721 + ... + 96923.

It is an arithmetic number, because the mean of its divisors is an integer number (40203072).

Almost surely, 2^849639366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849639366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964873728).

849639366 is an abundant number, since it is smaller than the sum of its proper divisors (1080108090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849639366 is a wasteful number, since it uses less digits than its factorization.

849639366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9457 (or 9454 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 54.

The square root of 849639366 is about 29148.5739959951. The cubic root of 849639366 is about 947.1342507318.

The spelling of 849639366 in words is "eight hundred forty-nine million, six hundred thirty-nine thousand, three hundred sixty-six".