849979 has 8 divisors (see below), whose sum is σ = 923552. Its totient is φ = 777600.

The previous prime is 849973. The next prime is 849991. The reversal of 849979 is 979948.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 849979 - 2⁹ = 849467 is a prime.

It is a Duffinian number.

849979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (849973) 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, 1747 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (115444).

2⁸⁴⁹⁹⁷⁹ is an apocalyptic number.

849979 is a deficient number, since it is larger than the sum of its proper divisors (73573).

849979 is a wasteful number, since it uses less digits than its factorization.

849979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597.

The product of its digits is 163296, while the sum is 46.

The square root of 849979 is about 921.9430568099. The cubic root of 849979 is about 94.7260436089.

The spelling of 849979 in words is "eight hundred forty-nine thousand, nine hundred seventy-nine".