673606213 has 4 divisors (see below), whose sum is σ = 769835680. Its totient is φ = 577376748.

The previous prime is 673606211. The next prime is 673606217. The reversal of 673606213 is 312606376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 673606213 - 2¹ = 673606211 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 (673606211) 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, 48114723 + ... + 48114736.

It is an arithmetic number, because the mean of its divisors is an integer number (192458920).

Almost surely, 2^673606213 is an apocalyptic number.

It is an amenable number.

673606213 is a deficient number, since it is larger than the sum of its proper divisors (96229467).

673606213 is an equidigital number, since it uses as much as digits as its factorization.

673606213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96229466.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 673606213 is about 25953.9248091690. The cubic root of 673606213 is about 876.6011338742.

The spelling of 673606213 in words is "six hundred seventy-three million, six hundred six thousand, two hundred thirteen".