673720360 has 32 divisors (see below), whose sum is σ = 1521792360. Its totient is φ = 268435456.

The previous prime is 673720339. The next prime is 673720367. The reversal of 673720360 is 63027376.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 630712996 + 43007364 = 25114^2 + 6558^2 .

673720360 is an undulating number in base 16.

It is not an unprimeable number, because it can be changed into a prime (673720367) by changing a digit.

In principle, a polygon with 673720360 sides can be constructed with ruler and compass.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22489 + ... + 43048.

Almost surely, 2^673720360 is an apocalyptic number.

It is an amenable number.

673720360 is an abundant number, since it is smaller than the sum of its proper divisors (848072000).

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

673720360 is a wasteful number, since it uses less digits than its factorization.

673720360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65805 (or 65801 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 673720360 is about 25956.1237475860. The cubic root of 673720360 is about 876.6506463521.

The spelling of 673720360 in words is "six hundred seventy-three million, seven hundred twenty thousand, three hundred sixty".