673868329 has 16 divisors (see below), whose sum is σ = 715912704. Its totient is φ = 632966400.

The previous prime is 673868311. The next prime is 673868353. The reversal of 673868329 is 923868376.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673868329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673860329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454269 + ... + 455749.

It is an arithmetic number, because the mean of its divisors is an integer number (44744544).

Almost surely, 2^673868329 is an apocalyptic number.

It is an amenable number.

673868329 is a deficient number, since it is larger than the sum of its proper divisors (42044375).

673868329 is a wasteful number, since it uses less digits than its factorization.

673868329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848.

The product of its digits is 2612736, while the sum is 52.

The square root of 673868329 is about 25958.9739589222. The cubic root of 673868329 is about 876.7148211600.

The spelling of 673868329 in words is "six hundred seventy-three million, eight hundred sixty-eight thousand, three hundred twenty-nine".