673400505 has 8 divisors (see below), whose sum is σ = 1077440832. Its totient is φ = 359146928.

The previous prime is 673400501. The next prime is 673400521. The reversal of 673400505 is 505004376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 673400505 - 2² = 673400501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673400501) by changing a digit.

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, 22446669 + ... + 22446698.

It is an arithmetic number, because the mean of its divisors is an integer number (134680104).

Almost surely, 2^673400505 is an apocalyptic number.

It is an amenable number.

673400505 is a deficient number, since it is larger than the sum of its proper divisors (404040327).

673400505 is a wasteful number, since it uses less digits than its factorization.

673400505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44893375.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 673400505 is about 25949.9615606652. The cubic root of 673400505 is about 876.5118917118.

The spelling of 673400505 in words is "six hundred seventy-three million, four hundred thousand, five hundred five".