849769 has 4 divisors (see below), whose sum is σ = 851796. Its totient is φ = 847744.

The previous prime is 849767. The next prime is 849773. The reversal of 849769 is 967948.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 619369 + 230400 = 787^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 849769 - 2¹ = 849767 is a prime.

It is a super-3 number, since 3×849769³ = 1840873330674670827, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

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

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 3 ways as a sum of consecutive naturals, for example, 124 + ... + 1309.

It is an arithmetic number, because the mean of its divisors is an integer number (212949).

2⁸⁴⁹⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

849769 is a deficient number, since it is larger than the sum of its proper divisors (2027).

849769 is a wasteful number, since it uses less digits than its factorization.

849769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026.

The product of its digits is 108864, while the sum is 43.

The square root of 849769 is about 921.8291598773. The cubic root of 849769 is about 94.7182418053.

The spelling of 849769 in words is "eight hundred forty-nine thousand, seven hundred sixty-nine".