860841853 has 2 divisors, whose sum is σ = 860841854. Its totient is φ = 860841852.

The previous prime is 860841841. The next prime is 860841859. The reversal of 860841853 is 358148068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439237764 + 421604089 = 20958^2 + 20533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-860841853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (860841859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430420926 + 430420927.

It is an arithmetic number, because the mean of its divisors is an integer number (430420927).

Almost surely, 2^860841853 is an apocalyptic number.

It is an amenable number.

860841853 is a deficient number, since it is larger than the sum of its proper divisors (1).

860841853 is an equidigital number, since it uses as much as digits as its factorization.

860841853 is an evil number, because the sum of its binary digits is even.

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

The square root of 860841853 is about 29340.1065608154. The cubic root of 860841853 is about 951.2787407763.

The spelling of 860841853 in words is "eight hundred sixty million, eight hundred forty-one thousand, eight hundred fifty-three".