609855671 has 4 divisors (see below), whose sum is σ = 645729552. Its totient is φ = 573981792.

The previous prime is 609855643. The next prime is 609855721. The reversal of 609855671 is 176558906.

609855671 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 609855671 - 2²² = 605661367 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 (609855601) 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, 17936915 + ... + 17936948.

It is an arithmetic number, because the mean of its divisors is an integer number (161432388).

Almost surely, 2^609855671 is an apocalyptic number.

609855671 is a deficient number, since it is larger than the sum of its proper divisors (35873881).

609855671 is a wasteful number, since it uses less digits than its factorization.

609855671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35873880.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 609855671 is about 24695.2560424062. The cubic root of 609855671 is about 848.0257159454.

The spelling of 609855671 in words is "six hundred nine million, eight hundred fifty-five thousand, six hundred seventy-one".