673503601 has 2 divisors, whose sum is σ = 673503602. Its totient is φ = 673503600.

The previous prime is 673503581. The next prime is 673503629. The reversal of 673503601 is 106305376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 407030625 + 266472976 = 20175^2 + 16324^2 .

It is a cyclic number.

It is not a de Polignac number, because 673503601 - 2¹¹ = 673501553 is a prime.

It is not a weakly prime, because it can be changed into another prime (673503001) 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, 336751800 + 336751801.

It is an arithmetic number, because the mean of its divisors is an integer number (336751801).

Almost surely, 2^673503601 is an apocalyptic number.

It is an amenable number.

673503601 is a deficient number, since it is larger than the sum of its proper divisors (1).

673503601 is an equidigital number, since it uses as much as digits as its factorization.

673503601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 673503601 is about 25951.9479230365. The cubic root of 673503601 is about 876.5566200512.

Adding to 673503601 its reverse (106305376), we get a palindrome (779808977).

The spelling of 673503601 in words is "six hundred seventy-three million, five hundred three thousand, six hundred one".