849159841 has 2 divisors, whose sum is σ = 849159842. Its totient is φ = 849159840.

The previous prime is 849159767. The next prime is 849159847. The reversal of 849159841 is 148951948.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 847042816 + 2117025 = 29104^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 849159841 - 2⁷ = 849159713 is a prime.

It is not a weakly prime, because it can be changed into another prime (849159847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424579920 + 424579921.

It is an arithmetic number, because the mean of its divisors is an integer number (424579921).

Almost surely, 2^849159841 is an apocalyptic number.

It is an amenable number.

849159841 is a deficient number, since it is larger than the sum of its proper divisors (1).

849159841 is an equidigital number, since it uses as much as digits as its factorization.

849159841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 49.

The square root of 849159841 is about 29140.3473040388. The cubic root of 849159841 is about 946.9560339338.

The spelling of 849159841 in words is "eight hundred forty-nine million, one hundred fifty-nine thousand, eight hundred forty-one".