827271649 has 2 divisors, whose sum is σ = 827271650. Its totient is φ = 827271648.

The previous prime is 827271631. The next prime is 827271671. The reversal of 827271649 is 946172728.

827271649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 819791424 + 7480225 = 28632^2 + 2735^2 .

It is a cyclic number.

It is not a de Polignac number, because 827271649 - 2⁵ = 827271617 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 827271599 and 827271608.

It is not a weakly prime, because it can be changed into another prime (827271449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413635824 + 413635825.

It is an arithmetic number, because the mean of its divisors is an integer number (413635825).

Almost surely, 2^827271649 is an apocalyptic number.

It is an amenable number.

827271649 is a deficient number, since it is larger than the sum of its proper divisors (1).

827271649 is an equidigital number, since it uses as much as digits as its factorization.

827271649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The square root of 827271649 is about 28762.3303819423. The cubic root of 827271649 is about 938.7487686826.

The spelling of 827271649 in words is "eight hundred twenty-seven million, two hundred seventy-one thousand, six hundred forty-nine".