827259493 has 2 divisors, whose sum is σ = 827259494. Its totient is φ = 827259492.

The previous prime is 827259463. The next prime is 827259557. The reversal of 827259493 is 394952728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 816644929 + 10614564 = 28577^2 + 3258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-827259493 is a prime.

It is a super-3 number, since 3×827259493³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (827259443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413629746 + 413629747.

It is an arithmetic number, because the mean of its divisors is an integer number (413629747).

Almost surely, 2^827259493 is an apocalyptic number.

It is an amenable number.

827259493 is a deficient number, since it is larger than the sum of its proper divisors (1).

827259493 is an equidigital number, since it uses as much as digits as its factorization.

827259493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 827259493 is about 28762.1190631010. The cubic root of 827259493 is about 938.7441706420.

The spelling of 827259493 in words is "eight hundred twenty-seven million, two hundred fifty-nine thousand, four hundred ninety-three".