609228539 has 8 divisors (see below), whose sum is σ = 615610032. Its totient is φ = 602864640.

The previous prime is 609228509. The next prime is 609228551. The reversal of 609228539 is 935822906.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 609228539 - 2⁸ = 609228283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 609228539.

It is not an unprimeable number, because it can be changed into a prime (609228509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72044 + ... + 80054.

It is an arithmetic number, because the mean of its divisors is an integer number (76951254).

Almost surely, 2^609228539 is an apocalyptic number.

609228539 is a deficient number, since it is larger than the sum of its proper divisors (6381493).

609228539 is a wasteful number, since it uses less digits than its factorization.

609228539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8797.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 609228539 is about 24682.5553579851. Note that the first 3 decimals coincide. The cubic root of 609228539 is about 847.7349332300.

The spelling of 609228539 in words is "six hundred nine million, two hundred twenty-eight thousand, five hundred thirty-nine".