827397269 has 2 divisors, whose sum is σ = 827397270. Its totient is φ = 827397268.

The previous prime is 827397251. The next prime is 827397281. The reversal of 827397269 is 962793728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 743216644 + 84180625 = 27262^2 + 9175^2 .

It is a cyclic number.

It is not a de Polignac number, because 827397269 - 2²⁰ = 826348693 is a prime.

It is a super-2 number, since 2×827397269² = 1369172481497316722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 827397269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (827393269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413698634 + 413698635.

It is an arithmetic number, because the mean of its divisors is an integer number (413698635).

Almost surely, 2^827397269 is an apocalyptic number.

It is an amenable number.

827397269 is a deficient number, since it is larger than the sum of its proper divisors (1).

827397269 is an equidigital number, since it uses as much as digits as its factorization.

827397269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 53.

The square root of 827397269 is about 28764.5140581238. The cubic root of 827397269 is about 938.7962821574.

The spelling of 827397269 in words is "eight hundred twenty-seven million, three hundred ninety-seven thousand, two hundred sixty-nine".