673727441 has 6 divisors (see below), whose sum is σ = 711053442. Its totient is φ = 638267760.

The previous prime is 673727437. The next prime is 673727443. The reversal of 673727441 is 144727376.

It can be written as a sum of positive squares in only one way, i.e., 550606225 + 123121216 = 23465^2 + 11096^2 .

It is not a de Polignac number, because 673727441 - 2² = 673727437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (673727443) 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 in 5 ways as a sum of consecutive naturals, for example, 932780 + ... + 933501.

It is an arithmetic number, because the mean of its divisors is an integer number (118508907).

Almost surely, 2^673727441 is an apocalyptic number.

It is an amenable number.

673727441 is a deficient number, since it is larger than the sum of its proper divisors (37326001).

673727441 is a wasteful number, since it uses less digits than its factorization.

673727441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866319 (or 1866300 counting only the distinct ones).

The product of its digits is 197568, while the sum is 41.

The square root of 673727441 is about 25956.2601504916. The cubic root of 673727441 is about 876.6537176271.

The spelling of 673727441 in words is "six hundred seventy-three million, seven hundred twenty-seven thousand, four hundred forty-one".