673587684 has 192 divisors, whose sum is σ = 2200504320. Its totient is φ = 173093760.

The previous prime is 673587661. The next prime is 673587709. The reversal of 673587684 is 486785376.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 673587684.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 889434 + ... + 890190.

It is an arithmetic number, because the mean of its divisors is an integer number (11460960).

Almost surely, 2^673587684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673587684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100252160).

673587684 is an abundant number, since it is smaller than the sum of its proper divisors (1526916636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673587684 is a wasteful number, since it uses less digits than its factorization.

673587684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 887 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The square root of 673587684 is about 25953.5678472151. The cubic root of 673587684 is about 876.5930961953.

The spelling of 673587684 in words is "six hundred seventy-three million, five hundred eighty-seven thousand, six hundred eighty-four".