609116447 has 4 divisors (see below), whose sum is σ = 615396096. Its totient is φ = 602836800.

The previous prime is 609116437. The next prime is 609116449. The reversal of 609116447 is 744611906.

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 609116447 - 2⁸ = 609116191 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 609116447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609116449) 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, 3139679 + ... + 3139872.

It is an arithmetic number, because the mean of its divisors is an integer number (153849024).

Almost surely, 2^609116447 is an apocalyptic number.

609116447 is a deficient number, since it is larger than the sum of its proper divisors (6279649).

609116447 is an equidigital number, since it uses as much as digits as its factorization.

609116447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6279648.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 609116447 is about 24680.2845810173. The cubic root of 609116447 is about 847.6829384385.

The spelling of 609116447 in words is "six hundred nine million, one hundred sixteen thousand, four hundred forty-seven".