673744826 has 16 divisors (see below), whose sum is σ = 1067182560. Its totient is φ = 318129840.

The previous prime is 673744811. The next prime is 673744837. The reversal of 673744826 is 628447376.

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, 15920 + ... + 40011.

It is an arithmetic number, because the mean of its divisors is an integer number (66698910).

Almost surely, 2^673744826 is an apocalyptic number.

673744826 is a deficient number, since it is larger than the sum of its proper divisors (393437734).

673744826 is a wasteful number, since it uses less digits than its factorization.

673744826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56269.

The product of its digits is 1354752, while the sum is 47.

The square root of 673744826 is about 25956.5950386410. The cubic root of 673744826 is about 876.6612580125.

The spelling of 673744826 in words is "six hundred seventy-three million, seven hundred forty-four thousand, eight hundred twenty-six".