673871380 has 96 divisors (see below), whose sum is σ = 1788950016. Its totient is φ = 207484416.

The previous prime is 673871371. The next prime is 673871413. The reversal of 673871380 is 83178376.

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, 62337 + ... + 72343.

It is an arithmetic number, because the mean of its divisors is an integer number (18634896).

Almost surely, 2^673871380 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 673871380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894475008).

673871380 is an abundant number, since it is smaller than the sum of its proper divisors (1115078636).

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

673871380 is a wasteful number, since it uses less digits than its factorization.

673871380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10073 (or 10071 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 673871380 is about 25959.0327246606. The cubic root of 673871380 is about 876.7161442933.

The spelling of 673871380 in words is "six hundred seventy-three million, eight hundred seventy-one thousand, three hundred eighty".