673762993 has 2 divisors, whose sum is σ = 673762994. Its totient is φ = 673762992.

The previous prime is 673762979. The next prime is 673763011. The reversal of 673762993 is 399267376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 533979664 + 139783329 = 23108^2 + 11823^2 .

It is a cyclic number.

It is not a de Polignac number, because 673762993 - 2²⁹ = 136892081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 673762993.

It is not a weakly prime, because it can be changed into another prime (673762913) 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, 336881496 + 336881497.

It is an arithmetic number, because the mean of its divisors is an integer number (336881497).

Almost surely, 2^673762993 is an apocalyptic number.

It is an amenable number.

673762993 is a deficient number, since it is larger than the sum of its proper divisors (1).

673762993 is an equidigital number, since it uses as much as digits as its factorization.

673762993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2571912, while the sum is 52.

The square root of 673762993 is about 25956.9449858800. The cubic root of 673762993 is about 876.6691374358.

The spelling of 673762993 in words is "six hundred seventy-three million, seven hundred sixty-two thousand, nine hundred ninety-three".