673239284 has 24 divisors (see below), whose sum is σ = 1205470728. Its totient is φ = 328872960.

The previous prime is 673239271. The next prime is 673239289. The reversal of 673239284 is 482932376.

It can be written as a sum of positive squares in 4 ways, for example, as 287980900 + 385258384 = 16970^2 + 19628^2 .

It is a super-2 number, since 2×673239284² = 906502267041665312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673239289) 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 7 ways as a sum of consecutive naturals, for example, 44504 + ... + 57680.

It is an arithmetic number, because the mean of its divisors is an integer number (50227947).

Almost surely, 2^673239284 is an apocalyptic number.

It is an amenable number.

673239284 is a deficient number, since it is larger than the sum of its proper divisors (532231444).

673239284 is a wasteful number, since it uses less digits than its factorization.

673239284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13475 (or 13473 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 673239284 is about 25946.8549924649. The cubic root of 673239284 is about 876.4419366101.

The spelling of 673239284 in words is "six hundred seventy-three million, two hundred thirty-nine thousand, two hundred eighty-four".