853900861 has 16 divisors (see below), whose sum is σ = 956121408. Its totient is φ = 755996800.

The previous prime is 853900849. The next prime is 853900889. The reversal of 853900861 is 168009358.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 853900861 - 2⁹ = 853900349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853900661) 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 15 ways as a sum of consecutive naturals, for example, 74526 + ... + 85216.

It is an arithmetic number, because the mean of its divisors is an integer number (59757588).

Almost surely, 2^853900861 is an apocalyptic number.

It is an amenable number.

853900861 is a deficient number, since it is larger than the sum of its proper divisors (102220547).

853900861 is a wasteful number, since it uses less digits than its factorization.

853900861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10892.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 853900861 is about 29221.5821098037. The cubic root of 853900861 is about 948.7151091151.

The spelling of 853900861 in words is "eight hundred fifty-three million, nine hundred thousand, eight hundred sixty-one".