849779 has 16 divisors (see below), whose sum is σ = 1061568. Its totient is φ = 663552.

The previous prime is 849773. The next prime is 849829. The reversal of 849779 is 977948.

It is a cyclic number.

It is not a de Polignac number, because 849779 - 2⁴ = 849763 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (849773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4307 + ... + 4499.

It is an arithmetic number, because the mean of its divisors is an integer number (66348).

2⁸⁴⁹⁷⁷⁹ is an apocalyptic number.

849779 is a deficient number, since it is larger than the sum of its proper divisors (211789).

849779 is a wasteful number, since it uses less digits than its factorization.

849779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254.

The product of its digits is 127008, while the sum is 44.

The square root of 849779 is about 921.8345838598. The cubic root of 849779 is about 94.7186133489.

The spelling of 849779 in words is "eight hundred forty-nine thousand, seven hundred seventy-nine".