849913579 has 4 divisors (see below), whose sum is σ = 849973176. Its totient is φ = 849853984.

The previous prime is 849913573. The next prime is 849913583. The reversal of 849913579 is 975319948.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 849913579 - 2⁷ = 849913451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849913573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5652 + ... + 41614.

It is an arithmetic number, because the mean of its divisors is an integer number (212493294).

Almost surely, 2^849913579 is an apocalyptic number.

849913579 is a deficient number, since it is larger than the sum of its proper divisors (59597).

849913579 is a wasteful number, since it uses less digits than its factorization.

849913579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59596.

The product of its digits is 2449440, while the sum is 55.

The square root of 849913579 is about 29153.2773286298. The cubic root of 849913579 is about 947.2361326201.

The spelling of 849913579 in words is "eight hundred forty-nine million, nine hundred thirteen thousand, five hundred seventy-nine".