673213207 has 4 divisors (see below), whose sum is σ = 679170960. Its totient is φ = 667255456.

The previous prime is 673213201. The next prime is 673213231. The reversal of 673213207 is 702312376.

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

It is a cyclic number.

It is not a de Polignac number, because 673213207 - 2³ = 673213199 is a prime.

It is a super-3 number, since 3×673213207³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673213201) 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, 2978707 + ... + 2978932.

It is an arithmetic number, because the mean of its divisors is an integer number (169792740).

Almost surely, 2^673213207 is an apocalyptic number.

673213207 is a deficient number, since it is larger than the sum of its proper divisors (5957753).

673213207 is a wasteful number, since it uses less digits than its factorization.

673213207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5957752.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 673213207 is about 25946.3524796839. The cubic root of 673213207 is about 876.4306205387.

The spelling of 673213207 in words is "six hundred seventy-three million, two hundred thirteen thousand, two hundred seven".