673653667 has 2 divisors, whose sum is σ = 673653668. Its totient is φ = 673653666.

The previous prime is 673653661. The next prime is 673653677. The reversal of 673653667 is 766356376.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673653667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 673653667.

It is not a weakly prime, because it can be changed into another prime (673653661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336826833 + 336826834.

It is an arithmetic number, because the mean of its divisors is an integer number (336826834).

Almost surely, 2^673653667 is an apocalyptic number.

673653667 is a deficient number, since it is larger than the sum of its proper divisors (1).

673653667 is an equidigital number, since it uses as much as digits as its factorization.

673653667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 49.

The square root of 673653667 is about 25954.8389900612. The cubic root of 673653667 is about 876.6217182318.

The spelling of 673653667 in words is "six hundred seventy-three million, six hundred fifty-three thousand, six hundred sixty-seven".