673057329 has 16 divisors (see below), whose sum is σ = 1029874560. Its totient is φ = 383005440.

The previous prime is 673057313. The next prime is 673057339. The reversal of 673057329 is 923750376.

It is a happy number.

It is not a de Polignac number, because 673057329 - 2⁴ = 673057313 is a prime.

It is a super-2 number, since 2×673057329² = 906012336241228482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (673057339) 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 15 ways as a sum of consecutive naturals, for example, 61434 + ... + 71555.

It is an arithmetic number, because the mean of its divisors is an integer number (64367160).

Almost surely, 2^673057329 is an apocalyptic number.

It is an amenable number.

673057329 is a deficient number, since it is larger than the sum of its proper divisors (356817231).

673057329 is a wasteful number, since it uses less digits than its factorization.

673057329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133240.

The product of its (nonzero) digits is 238140, while the sum is 42.

The square root of 673057329 is about 25943.3484538908. The cubic root of 673057329 is about 876.3629714411.

It can be divided in two parts, 67305 and 7329, that multiplied together give a triangular number (493278345 = T₃₁₄₀₉).

The spelling of 673057329 in words is "six hundred seventy-three million, fifty-seven thousand, three hundred twenty-nine".