609651227 has 4 divisors (see below), whose sum is σ = 618237936. Its totient is φ = 601064520.

The previous prime is 609651223. The next prime is 609651247. The reversal of 609651227 is 722156906.

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 609651227 - 2² = 609651223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609651223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4293248 + ... + 4293389.

It is an arithmetic number, because the mean of its divisors is an integer number (154559484).

Almost surely, 2^609651227 is an apocalyptic number.

609651227 is a deficient number, since it is larger than the sum of its proper divisors (8586709).

609651227 is an equidigital number, since it uses as much as digits as its factorization.

609651227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8586708.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 609651227 is about 24691.1163579130. The cubic root of 609651227 is about 847.9309431683.

The spelling of 609651227 in words is "six hundred nine million, six hundred fifty-one thousand, two hundred twenty-seven".