673387000 has 256 divisors, whose sum is σ = 1967172480. Its totient is φ = 211968000.

The previous prime is 673386979. The next prime is 673387003. The reversal of 673387000 is 783376.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673387003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2430862 + ... + 2431138.

Almost surely, 2^673387000 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 673387000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983586240).

673387000 is an abundant number, since it is smaller than the sum of its proper divisors (1293785480).

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

673387000 is a wasteful number, since it uses less digits than its factorization.

673387000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 673387000 is about 25949.7013470290. The cubic root of 673387000 is about 876.5060322111.

The spelling of 673387000 in words is "six hundred seventy-three million, three hundred eighty-seven thousand".