673747456 has 40 divisors (see below), whose sum is σ = 1356006960. Its totient is φ = 334414848.

The previous prime is 673747427. The next prime is 673747469. The reversal of 673747456 is 654747376.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66435 + ... + 75901.

It is an arithmetic number, because the mean of its divisors is an integer number (33900174).

Almost surely, 2^673747456 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 673747456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678003480).

673747456 is an abundant number, since it is smaller than the sum of its proper divisors (682259504).

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

673747456 is an equidigital number, since it uses as much as digits as its factorization.

673747456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624 (or 9608 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 49.

The square root of 673747456 is about 25956.6457000900. The cubic root of 673747456 is about 876.6623987095.

The spelling of 673747456 in words is "six hundred seventy-three million, seven hundred forty-seven thousand, four hundred fifty-six".