849663 has 8 divisors (see below), whose sum is σ = 1258800. Its totient is φ = 566424.

The previous prime is 849649. The next prime is 849691. The reversal of 849663 is 366948.

It is not a de Polignac number, because 849663 - 2⁶ = 849599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15708 + ... + 15761.

It is an arithmetic number, because the mean of its divisors is an integer number (157350).

2⁸⁴⁹⁶⁶³ is an apocalyptic number.

849663 is a deficient number, since it is larger than the sum of its proper divisors (409137).

849663 is a wasteful number, since it uses less digits than its factorization.

849663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31478 (or 31472 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 849663 is about 921.7716636999. The cubic root of 849663 is about 94.7143032639.

The spelling of 849663 in words is "eight hundred forty-nine thousand, six hundred sixty-three".