685322327 has 2 divisors, whose sum is σ = 685322328. Its totient is φ = 685322326.

The previous prime is 685322299. The next prime is 685322359. The reversal of 685322327 is 723223586.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-685322327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (685322387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342661163 + 342661164.

It is an arithmetic number, because the mean of its divisors is an integer number (342661164).

Almost surely, 2^685322327 is an apocalyptic number.

685322327 is a deficient number, since it is larger than the sum of its proper divisors (1).

685322327 is an equidigital number, since it uses as much as digits as its factorization.

685322327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 38.

The square root of 685322327 is about 26178.6616732025. The cubic root of 685322327 is about 881.6542261570.

The spelling of 685322327 in words is "six hundred eighty-five million, three hundred twenty-two thousand, three hundred twenty-seven".