609906311 has 4 divisors (see below), whose sum is σ = 697035792. Its totient is φ = 522776832.

The previous prime is 609906299. The next prime is 609906329. The reversal of 609906311 is 113609906.

609906311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 609906311 - 2⁶ = 609906247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609906361) 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, 43564730 + ... + 43564743.

It is an arithmetic number, because the mean of its divisors is an integer number (174258948).

Almost surely, 2^609906311 is an apocalyptic number.

609906311 is a deficient number, since it is larger than the sum of its proper divisors (87129481).

609906311 is an equidigital number, since it uses as much as digits as its factorization.

609906311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87129480.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 609906311 is about 24696.2813192594. The cubic root of 609906311 is about 848.0491875282.

The spelling of 609906311 in words is "six hundred nine million, nine hundred six thousand, three hundred eleven".