673072780 has 48 divisors (see below), whose sum is σ = 1447469856. Its totient is φ = 262817280.

The previous prime is 673072747. The next prime is 673072781. The reversal of 673072780 is 87270376.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (673072781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165127 + ... + 169153.

It is an arithmetic number, because the mean of its divisors is an integer number (30155622).

Almost surely, 2^673072780 is an apocalyptic number.

It is an amenable number.

673072780 is an abundant number, since it is smaller than the sum of its proper divisors (774397076).

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

673072780 is a wasteful number, since it uses less digits than its factorization.

673072780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4234 (or 4232 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 673072780 is about 25943.6462356393. The cubic root of 673072780 is about 876.3696774477.

The spelling of 673072780 in words is "six hundred seventy-three million, seventy-two thousand, seven hundred eighty".