673270993 has 2 divisors, whose sum is σ = 673270994. Its totient is φ = 673270992.

The previous prime is 673270991. The next prime is 673271041. The reversal of 673270993 is 399072376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 634183489 + 39087504 = 25183^2 + 6252^2 .

It is a cyclic number.

It is not a de Polignac number, because 673270993 - 2¹ = 673270991 is a prime.

Together with 673270991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (673270991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336635496 + 336635497.

It is an arithmetic number, because the mean of its divisors is an integer number (336635497).

Almost surely, 2^673270993 is an apocalyptic number.

It is an amenable number.

673270993 is a deficient number, since it is larger than the sum of its proper divisors (1).

673270993 is an equidigital number, since it uses as much as digits as its factorization.

673270993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 428652, while the sum is 46.

The square root of 673270993 is about 25947.4660227160. The cubic root of 673270993 is about 876.4556962850.

The spelling of 673270993 in words is "six hundred seventy-three million, two hundred seventy thousand, nine hundred ninety-three".