673604385 has 8 divisors (see below), whose sum is σ = 1077767040. Its totient is φ = 359255664.

The previous prime is 673604383. The next prime is 673604389. The reversal of 673604385 is 583406376.

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

It is not a de Polignac number, because 673604385 - 2¹ = 673604383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673604383) 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 7 ways as a sum of consecutive naturals, for example, 22453465 + ... + 22453494.

It is an arithmetic number, because the mean of its divisors is an integer number (134720880).

Almost surely, 2^673604385 is an apocalyptic number.

It is an amenable number.

673604385 is a deficient number, since it is larger than the sum of its proper divisors (404162655).

673604385 is a wasteful number, since it uses less digits than its factorization.

673604385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44906967.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 673604385 is about 25953.8895928915. The cubic root of 673604385 is about 876.6003409142.

The spelling of 673604385 in words is "six hundred seventy-three million, six hundred four thousand, three hundred eighty-five".