672305203 has 4 divisors (see below), whose sum is σ = 701535888. Its totient is φ = 643074520.

The previous prime is 672305189. The next prime is 672305209. The reversal of 672305203 is 302503276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672305203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672305209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14615308 + ... + 14615353.

It is an arithmetic number, because the mean of its divisors is an integer number (175383972).

Almost surely, 2^672305203 is an apocalyptic number.

672305203 is a deficient number, since it is larger than the sum of its proper divisors (29230685).

672305203 is a wasteful number, since it uses less digits than its factorization.

672305203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29230684.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 672305203 is about 25928.8488560522. The cubic root of 672305203 is about 876.0364113185.

Adding to 672305203 its reverse (302503276), we get a palindrome (974808479).

The spelling of 672305203 in words is "six hundred seventy-two million, three hundred five thousand, two hundred three".