672716767 has 2 divisors, whose sum is σ = 672716768. Its totient is φ = 672716766.

The previous prime is 672716713. The next prime is 672716773. The reversal of 672716767 is 767617276.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672716767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 672716767.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672716797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336358383 + 336358384.

It is an arithmetic number, because the mean of its divisors is an integer number (336358384).

Almost surely, 2^672716767 is an apocalyptic number.

672716767 is a deficient number, since it is larger than the sum of its proper divisors (1).

672716767 is an equidigital number, since it uses as much as digits as its factorization.

672716767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1037232, while the sum is 49.

The square root of 672716767 is about 25936.7840527695. The cubic root of 672716767 is about 876.2151354562.

The spelling of 672716767 in words is "six hundred seventy-two million, seven hundred sixteen thousand, seven hundred sixty-seven".