849728879 has 8 divisors (see below), whose sum is σ = 877493760. Its totient is φ = 821986200.

The previous prime is 849728863. The next prime is 849728903. The reversal of 849728879 is 978827948.

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 849728879 - 2⁴ = 849728863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849728809) 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, 112244 + ... + 119574.

It is an arithmetic number, because the mean of its divisors is an integer number (109686720).

Almost surely, 2^849728879 is an apocalyptic number.

849728879 is a deficient number, since it is larger than the sum of its proper divisors (27764881).

849728879 is a wasteful number, since it uses less digits than its factorization.

849728879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11101.

The product of its digits is 16257024, while the sum is 62.

The square root of 849728879 is about 29150.1094166043. The cubic root of 849728879 is about 947.1675110594.

The spelling of 849728879 in words is "eight hundred forty-nine million, seven hundred twenty-eight thousand, eight hundred seventy-nine".