673400407 has 8 divisors (see below), whose sum is σ = 693821936. Its totient is φ = 653095872.

The previous prime is 673400393. The next prime is 673400419. The reversal of 673400407 is 704004376.

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 673400407 - 2¹⁹ = 672876119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673470407) 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, 17493 + ... + 40654.

It is an arithmetic number, because the mean of its divisors is an integer number (86727742).

Almost surely, 2^673400407 is an apocalyptic number.

673400407 is a deficient number, since it is larger than the sum of its proper divisors (20421529).

673400407 is a wasteful number, since it uses less digits than its factorization.

673400407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58497.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 673400407 is about 25949.9596724157. The cubic root of 673400407 is about 876.5118491922.

The spelling of 673400407 in words is "six hundred seventy-three million, four hundred thousand, four hundred seven".