673872097 has 2 divisors, whose sum is σ = 673872098. Its totient is φ = 673872096.

The previous prime is 673872077. The next prime is 673872119. The reversal of 673872097 is 790278376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410913441 + 262958656 = 20271^2 + 16216^2 .

It is a cyclic number.

It is not a de Polignac number, because 673872097 - 2¹⁹ = 673347809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 673872097.

It is not a weakly prime, because it can be changed into another prime (673872007) 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, 336936048 + 336936049.

It is an arithmetic number, because the mean of its divisors is an integer number (336936049).

Almost surely, 2^673872097 is an apocalyptic number.

It is an amenable number.

673872097 is a deficient number, since it is larger than the sum of its proper divisors (1).

673872097 is an equidigital number, since it uses as much as digits as its factorization.

673872097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 49.

The square root of 673872097 is about 25959.0465348787. The cubic root of 673872097 is about 876.7164552356.

The spelling of 673872097 in words is "six hundred seventy-three million, eight hundred seventy-two thousand, ninety-seven".