859798853 has 4 divisors (see below), whose sum is σ = 871908768. Its totient is φ = 847688940.

The previous prime is 859798847. The next prime is 859798861. The reversal of 859798853 is 358897958.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 859798853 - 2⁶ = 859798789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859798253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6054851 + ... + 6054992.

It is an arithmetic number, because the mean of its divisors is an integer number (217977192).

Almost surely, 2^859798853 is an apocalyptic number.

It is an amenable number.

859798853 is a deficient number, since it is larger than the sum of its proper divisors (12109915).

859798853 is a wasteful number, since it uses less digits than its factorization.

859798853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12109914.

The product of its digits is 21772800, while the sum is 62.

The square root of 859798853 is about 29322.3268687872. The cubic root of 859798853 is about 950.8943942576.

The spelling of 859798853 in words is "eight hundred fifty-nine million, seven hundred ninety-eight thousand, eight hundred fifty-three".