673810305 has 32 divisors (see below), whose sum is σ = 1233356544. Its totient is φ = 307716096.

The previous prime is 673810303. The next prime is 673810337. The reversal of 673810305 is 503018376.

It is a happy number.

It is not a de Polignac number, because 673810305 - 2¹ = 673810303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673810303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125149 + ... + 130421.

It is an arithmetic number, because the mean of its divisors is an integer number (38542392).

Almost surely, 2^673810305 is an apocalyptic number.

It is an amenable number.

673810305 is a deficient number, since it is larger than the sum of its proper divisors (559546239).

673810305 is a wasteful number, since it uses less digits than its factorization.

673810305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 673810305 is about 25957.8563252053. The cubic root of 673810305 is about 876.6896570151.

The spelling of 673810305 in words is "six hundred seventy-three million, eight hundred ten thousand, three hundred five".