610609871 has 4 divisors (see below), whose sum is σ = 611100000. Its totient is φ = 610119744.

The previous prime is 610609861. The next prime is 610609889. The reversal of 610609871 is 178906016.

610609871 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 a de Polignac number, because none of the positive numbers 2^k-610609871 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 (610609801) 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, 243191 + ... + 245688.

It is an arithmetic number, because the mean of its divisors is an integer number (152775000).

Almost surely, 2^610609871 is an apocalyptic number.

610609871 is a deficient number, since it is larger than the sum of its proper divisors (490129).

610609871 is a wasteful number, since it uses less digits than its factorization.

610609871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490128.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 610609871 is about 24710.5214635386. The cubic root of 610609871 is about 848.3751524611.

The spelling of 610609871 in words is "six hundred ten million, six hundred nine thousand, eight hundred seventy-one".