673208129 has 8 divisors (see below), whose sum is σ = 751488672. Its totient is φ = 597774240.

The previous prime is 673208099. The next prime is 673208131. The reversal of 673208129 is 921802376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673208129 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 673208092 and 673208101.

It is not an unprimeable number, because it can be changed into a prime (673208149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711164 + ... + 712109.

It is an arithmetic number, because the mean of its divisors is an integer number (93936084).

Almost surely, 2^673208129 is an apocalyptic number.

It is an amenable number.

673208129 is a deficient number, since it is larger than the sum of its proper divisors (78280543).

673208129 is a wasteful number, since it uses less digits than its factorization.

673208129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423327.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 673208129 is about 25946.2546237410. The cubic root of 673208129 is about 876.4284169149.

It can be divided in two parts, 673 and 208129, that added together give a palindrome (208802).

The spelling of 673208129 in words is "six hundred seventy-three million, two hundred eight thousand, one hundred twenty-nine".