610647985 has 16 divisors (see below), whose sum is σ = 740057472. Its totient is φ = 483683200.

The previous prime is 610647979. The next prime is 610648019. The reversal of 610647985 is 589746016.

It is not a de Polignac number, because 610647985 - 2³ = 610647977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403380 + ... + 404890.

It is an arithmetic number, because the mean of its divisors is an integer number (46253592).

Almost surely, 2^610647985 is an apocalyptic number.

It is an amenable number.

610647985 is a deficient number, since it is larger than the sum of its proper divisors (129409487).

610647985 is a wasteful number, since it uses less digits than its factorization.

610647985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 610647985 is about 24711.2926614534. The cubic root of 610647985 is about 848.3928038287.

The spelling of 610647985 in words is "six hundred ten million, six hundred forty-seven thousand, nine hundred eighty-five".