609329213 has 4 divisors (see below), whose sum is σ = 609541020. Its totient is φ = 609117408.

The previous prime is 609329191. The next prime is 609329219. The reversal of 609329213 is 312923906.

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

It can be written as a sum of positive squares in 2 ways, for example, as 438190489 + 171138724 = 20933^2 + 13082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-609329213 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 (609329219) 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, 101528 + ... + 107361.

It is an arithmetic number, because the mean of its divisors is an integer number (152385255).

Almost surely, 2^609329213 is an apocalyptic number.

It is an amenable number.

609329213 is a deficient number, since it is larger than the sum of its proper divisors (211807).

609329213 is a wasteful number, since it uses less digits than its factorization.

609329213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211806.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 609329213 is about 24684.5946492949. The cubic root of 609329213 is about 847.7816262527.

The spelling of 609329213 in words is "six hundred nine million, three hundred twenty-nine thousand, two hundred thirteen".