673645327 has 8 divisors (see below), whose sum is σ = 676645632. Its totient is φ = 670651800.

The previous prime is 673645289. The next prime is 673645333. The reversal of 673645327 is 723546376.

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 673645327 - 2¹¹ = 673643279 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 (673645337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315052 + ... + 317182.

It is an arithmetic number, because the mean of its divisors is an integer number (84580704).

Almost surely, 2^673645327 is an apocalyptic number.

673645327 is a deficient number, since it is larger than the sum of its proper divisors (3000305).

673645327 is a wasteful number, since it uses less digits than its factorization.

673645327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389.

The product of its digits is 635040, while the sum is 43.

The square root of 673645327 is about 25954.6783258818. The cubic root of 673645327 is about 876.6181006185.

The spelling of 673645327 in words is "six hundred seventy-three million, six hundred forty-five thousand, three hundred twenty-seven".