858073881 has 32 divisors (see below), whose sum is σ = 1330576128. Its totient is φ = 481766400.

The previous prime is 858073873. The next prime is 858073907. The reversal of 858073881 is 188370858.

It is not a de Polignac number, because 858073881 - 2³ = 858073873 is a prime.

It is a super-2 number, since 2×858073881² = 1472581570508804322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 858073881.

It is not an unprimeable number, because it can be changed into a prime (858073081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289101 + ... + 292053.

It is an arithmetic number, because the mean of its divisors is an integer number (41580504).

Almost surely, 2^858073881 is an apocalyptic number.

It is an amenable number.

858073881 is a deficient number, since it is larger than the sum of its proper divisors (472502247).

858073881 is a wasteful number, since it uses less digits than its factorization.

858073881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201.

The product of its (nonzero) digits is 430080, while the sum is 48.

The square root of 858073881 is about 29292.8981324826. The cubic root of 858073881 is about 950.2580576881.

The spelling of 858073881 in words is "eight hundred fifty-eight million, seventy-three thousand, eight hundred eighty-one".