673400005 has 16 divisors (see below), whose sum is σ = 856234800. Its totient is φ = 506662912.

The previous prime is 673399933. The next prime is 673400023. The reversal of 673400005 is 500004376.

It can be written as a sum of positive squares in 8 ways, for example, as 56821444 + 616578561 = 7538^2 + 24831^2 .

It is a cyclic number.

It is not a de Polignac number, because 673400005 - 2¹⁹ = 672875717 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 193521 + ... + 196969.

It is an arithmetic number, because the mean of its divisors is an integer number (53514675).

Almost surely, 2^673400005 is an apocalyptic number.

It is an amenable number.

673400005 is a deficient number, since it is larger than the sum of its proper divisors (182834795).

673400005 is a wasteful number, since it uses less digits than its factorization.

673400005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5768.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 673400005 is about 25949.9519267377. The cubic root of 673400005 is about 876.5116747750.

The spelling of 673400005 in words is "six hundred seventy-three million, four hundred thousand, five".