854040841 has 2 divisors, whose sum is σ = 854040842. Its totient is φ = 854040840.

The previous prime is 854040829. The next prime is 854040851. The reversal of 854040841 is 148040458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 738263241 + 115777600 = 27171^2 + 10760^2 .

It is a cyclic number.

It is not a de Polignac number, because 854040841 - 2¹¹ = 854038793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 854040797 and 854040806.

It is not a weakly prime, because it can be changed into another prime (854040821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427020420 + 427020421.

It is an arithmetic number, because the mean of its divisors is an integer number (427020421).

Almost surely, 2^854040841 is an apocalyptic number.

It is an amenable number.

854040841 is a deficient number, since it is larger than the sum of its proper divisors (1).

854040841 is an equidigital number, since it uses as much as digits as its factorization.

854040841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 854040841 is about 29223.9771591753. The cubic root of 854040841 is about 948.7669472504.

The spelling of 854040841 in words is "eight hundred fifty-four million, forty thousand, eight hundred forty-one".