535685669 has 2 divisors, whose sum is σ = 535685670. Its totient is φ = 535685668.

The previous prime is 535685641. The next prime is 535685671. The reversal of 535685669 is 966586535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290293444 + 245392225 = 17038^2 + 15665^2 .

It is a cyclic number.

It is not a de Polignac number, because 535685669 - 2¹⁶ = 535620133 is a prime.

It is a super-2 number, since 2×535685669² = 573918271943955122, which contains 22 as substring.

Together with 535685671, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 535685669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (535685629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267842834 + 267842835.

It is an arithmetic number, because the mean of its divisors is an integer number (267842835).

Almost surely, 2^535685669 is an apocalyptic number.

It is an amenable number.

535685669 is a deficient number, since it is larger than the sum of its proper divisors (1).

535685669 is an equidigital number, since it uses as much as digits as its factorization.

535685669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832000, while the sum is 53.

The square root of 535685669 is about 23144.8842943749. The cubic root of 535685669 is about 812.1507991787.

The spelling of 535685669 in words is "five hundred thirty-five million, six hundred eighty-five thousand, six hundred sixty-nine".