673508608 has 36 divisors (see below), whose sum is σ = 1353485700. Its totient is φ = 334475264.

The previous prime is 673508513. The next prime is 673508623. The reversal of 673508608 is 806805376.

It can be written as a sum of positive squares in 2 ways, for example, as 79709184 + 593799424 = 8928^2 + 24368^2 .

It is a super-2 number, since 2×673508608² = 907227690100195328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29316 + ... + 46972.

It is an arithmetic number, because the mean of its divisors is an integer number (37596825).

Almost surely, 2^673508608 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 673508608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676742850).

673508608 is an abundant number, since it is smaller than the sum of its proper divisors (679977092).

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

673508608 is a wasteful number, since it uses less digits than its factorization.

673508608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17822 (or 17808 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 673508608 is about 25952.0443896045. The cubic root of 673508608 is about 876.5587922287.

The spelling of 673508608 in words is "six hundred seventy-three million, five hundred eight thousand, six hundred eight".