610345885 has 12 divisors (see below), whose sum is σ = 750724884. Its totient is φ = 476360960.

The previous prime is 610345877. The next prime is 610345909. The reversal of 610345885 is 588543016.

It can be written as a sum of positive squares in 6 ways, for example, as 53904964 + 556440921 = 7342^2 + 23589^2 .

It is not a de Polignac number, because 610345885 - 2³ = 610345877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27904 + ... + 44713.

It is an arithmetic number, because the mean of its divisors is an integer number (62560407).

Almost surely, 2^610345885 is an apocalyptic number.

It is an amenable number.

610345885 is a deficient number, since it is larger than the sum of its proper divisors (140378999).

610345885 is an equidigital number, since it uses as much as digits as its factorization.

610345885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72704 (or 72663 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 610345885 is about 24705.1793152772. The cubic root of 610345885 is about 848.2528750157.

The spelling of 610345885 in words is "six hundred ten million, three hundred forty-five thousand, eight hundred eighty-five".