858885013 has 4 divisors (see below), whose sum is σ = 981582880. Its totient is φ = 736187148.

The previous prime is 858884947. The next prime is 858885017. The reversal of 858885013 is 310588858.

858885013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-858885013 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 (858885017) 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, 61348923 + ... + 61348936.

It is an arithmetic number, because the mean of its divisors is an integer number (245395720).

Almost surely, 2^858885013 is an apocalyptic number.

It is an amenable number.

858885013 is a deficient number, since it is larger than the sum of its proper divisors (122697867).

858885013 is a wasteful number, since it uses less digits than its factorization.

858885013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122697866.

The product of its (nonzero) digits is 307200, while the sum is 46.

The square root of 858885013 is about 29306.7400609484. The cubic root of 858885013 is about 950.5573877694.

The spelling of 858885013 in words is "eight hundred fifty-eight million, eight hundred eighty-five thousand, thirteen".