854044891 has 4 divisors (see below), whose sum is σ = 976051312. Its totient is φ = 732038472.

The previous prime is 854044859. The next prime is 854044903. The reversal of 854044891 is 198440458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 854044891 - 2⁵ = 854044859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854044811) 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, 61003200 + ... + 61003213.

It is an arithmetic number, because the mean of its divisors is an integer number (244012828).

Almost surely, 2^854044891 is an apocalyptic number.

854044891 is a deficient number, since it is larger than the sum of its proper divisors (122006421).

854044891 is a wasteful number, since it uses less digits than its factorization.

854044891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122006420.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 854044891 is about 29224.0464515098. The cubic root of 854044891 is about 948.7684469835.

The spelling of 854044891 in words is "eight hundred fifty-four million, forty-four thousand, eight hundred ninety-one".