849566 has 16 divisors (see below), whose sum is σ = 1363200. Its totient is φ = 395928.

The previous prime is 849539. The next prime is 849571. The reversal of 849566 is 665948.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2861 + ... + 3143.

It is an arithmetic number, because the mean of its divisors is an integer number (85200).

2⁸⁴⁹⁵⁶⁶ is an apocalyptic number.

849566 is a deficient number, since it is larger than the sum of its proper divisors (513634).

849566 is a wasteful number, since it uses less digits than its factorization.

849566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383.

The product of its digits is 51840, while the sum is 38.

The square root of 849566 is about 921.7190461307. The cubic root of 849566 is about 94.7106988400.

The spelling of 849566 in words is "eight hundred forty-nine thousand, five hundred sixty-six".