609775387 has 16 divisors (see below), whose sum is σ = 664796160. Its totient is φ = 555956352.

The previous prime is 609775381. The next prime is 609775391. The reversal of 609775387 is 783577906.

It is a happy number.

609775387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 609775387 - 2¹⁹ = 609251099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609775381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443433 + ... + 444805.

It is an arithmetic number, because the mean of its divisors is an integer number (41549760).

Almost surely, 2^609775387 is an apocalyptic number.

609775387 is a deficient number, since it is larger than the sum of its proper divisors (55020773).

609775387 is a wasteful number, since it uses less digits than its factorization.

609775387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The square root of 609775387 is about 24693.6304945223. The cubic root of 609775387 is about 847.9885017390.

The spelling of 609775387 in words is "six hundred nine million, seven hundred seventy-five thousand, three hundred eighty-seven".