854853961 has 4 divisors (see below), whose sum is σ = 920611972. Its totient is φ = 789095952.

The previous prime is 854853953. The next prime is 854853991. The reversal of 854853961 is 169358458.

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

It can be written as a sum of positive squares in 2 ways, for example, as 587335225 + 267518736 = 24235^2 + 16356^2 .

It is a cyclic number.

It is not a de Polignac number, because 854853961 - 2³ = 854853953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854853911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32878986 + ... + 32879011.

It is an arithmetic number, because the mean of its divisors is an integer number (230152993).

Almost surely, 2^854853961 is an apocalyptic number.

It is an amenable number.

854853961 is a deficient number, since it is larger than the sum of its proper divisors (65758011).

854853961 is a wasteful number, since it uses less digits than its factorization.

854853961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65758010.

The product of its digits is 1036800, while the sum is 49.

The square root of 854853961 is about 29237.8857135738. The cubic root of 854853961 is about 949.0679541968.

The spelling of 854853961 in words is "eight hundred fifty-four million, eight hundred fifty-three thousand, nine hundred sixty-one".