685533367 has 2 divisors, whose sum is σ = 685533368. Its totient is φ = 685533366.

The previous prime is 685533307. The next prime is 685533383. The reversal of 685533367 is 763335586.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-685533367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (685533307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342766683 + 342766684.

It is an arithmetic number, because the mean of its divisors is an integer number (342766684).

Almost surely, 2^685533367 is an apocalyptic number.

685533367 is a deficient number, since it is larger than the sum of its proper divisors (1).

685533367 is an equidigital number, since it uses as much as digits as its factorization.

685533367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 46.

The square root of 685533367 is about 26182.6921266702. The cubic root of 685533367 is about 881.7447165266.

The spelling of 685533367 in words is "six hundred eighty-five million, five hundred thirty-three thousand, three hundred sixty-seven".