609319 has 4 divisors (see below), whose sum is σ = 630360. Its totient is φ = 588280.

The previous prime is 609313. The next prime is 609337. The reversal of 609319 is 913906.

It is a happy number.

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 609319 - 2¹³ = 601127 is a prime.

It is a super-2 number, since 2×609319² = 742539287522, which contains 22 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 (609313) 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, 10477 + ... + 10534.

It is an arithmetic number, because the mean of its divisors is an integer number (157590).

2⁶⁰⁹³¹⁹ is an apocalyptic number.

609319 is a deficient number, since it is larger than the sum of its proper divisors (21041).

609319 is a wasteful number, since it uses less digits than its factorization.

609319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21040.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 609319 is about 780.5888802692. The cubic root of 609319 is about 84.7776889655. Note that the first 3 decimals are identical.

The spelling of 609319 in words is "six hundred nine thousand, three hundred nineteen".