673360549 has 2 divisors, whose sum is σ = 673360550. Its totient is φ = 673360548.

The previous prime is 673360511. The next prime is 673360577. The reversal of 673360549 is 945063376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 614147524 + 59213025 = 24782^2 + 7695^2 .

It is a cyclic number.

It is not a de Polignac number, because 673360549 - 2⁷ = 673360421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673330549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336680274 + 336680275.

It is an arithmetic number, because the mean of its divisors is an integer number (336680275).

Almost surely, 2^673360549 is an apocalyptic number.

It is an amenable number.

673360549 is a deficient number, since it is larger than the sum of its proper divisors (1).

673360549 is an equidigital number, since it uses as much as digits as its factorization.

673360549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 43.

The square root of 673360549 is about 25949.1916829793. The cubic root of 673360549 is about 876.4945555196.

The spelling of 673360549 in words is "six hundred seventy-three million, three hundred sixty thousand, five hundred forty-nine".