673568530 has 16 divisors (see below), whose sum is σ = 1214901504. Its totient is φ = 268876720.

The previous prime is 673568491. The next prime is 673568557. The reversal of 673568530 is 35865376.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63682 + ... + 73501.

It is an arithmetic number, because the mean of its divisors is an integer number (75931344).

Almost surely, 2^673568530 is an apocalyptic number.

673568530 is a deficient number, since it is larger than the sum of its proper divisors (541332974).

673568530 is a wasteful number, since it uses less digits than its factorization.

673568530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137681.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 673568530 is about 25953.1988394494. The cubic root of 673568530 is about 876.5847872433.

The spelling of 673568530 in words is "six hundred seventy-three million, five hundred sixty-eight thousand, five hundred thirty".