673289628 has 96 divisors (see below), whose sum is σ = 1747630080. Its totient is φ = 200048640.

The previous prime is 673289599. The next prime is 673289647. The reversal of 673289628 is 826982376.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2619676 + ... + 2619932.

It is an arithmetic number, because the mean of its divisors is an integer number (18204480).

Almost surely, 2^673289628 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 673289628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873815040).

673289628 is an abundant number, since it is smaller than the sum of its proper divisors (1074340452).

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

673289628 is a wasteful number, since it uses less digits than its factorization.

673289628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587 (or 585 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 673289628 is about 25947.8251111726. The cubic root of 673289628 is about 876.4637824798.

The spelling of 673289628 in words is "six hundred seventy-three million, two hundred eighty-nine thousand, six hundred twenty-eight".