672867317 has 2 divisors, whose sum is σ = 672867318. Its totient is φ = 672867316.

The previous prime is 672867313. The next prime is 672867331. The reversal of 672867317 is 713768276.

672867317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494217361 + 178649956 = 22231^2 + 13366^2 .

It is a cyclic number.

It is not a de Polignac number, because 672867317 - 2² = 672867313 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 (672867313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336433658 + 336433659.

It is an arithmetic number, because the mean of its divisors is an integer number (336433659).

Almost surely, 2^672867317 is an apocalyptic number.

It is an amenable number.

672867317 is a deficient number, since it is larger than the sum of its proper divisors (1).

672867317 is an equidigital number, since it uses as much as digits as its factorization.

672867317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 47.

The square root of 672867317 is about 25939.6861391961. The cubic root of 672867317 is about 876.2804944879.

The spelling of 672867317 in words is "six hundred seventy-two million, eight hundred sixty-seven thousand, three hundred seventeen".