2985863305 has 4 divisors (see below), whose sum is σ = 3583035972. Its totient is φ = 2388690640.

The previous prime is 2985863291. The next prime is 2985863317. The reversal of 2985863305 is 5033685892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2000593984 + 985269321 = 44728^2 + 31389^2 .

It is not a de Polignac number, because 2985863305 - 2⁹ = 2985862793 is a prime.

It is a super-2 number, since 2×2985863305² = 17830759352291046050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298586326 + ... + 298586335.

It is an arithmetic number, because the mean of its divisors is an integer number (895758993).

Almost surely, 2^2985863305 is an apocalyptic number.

It is an amenable number.

2985863305 is a deficient number, since it is larger than the sum of its proper divisors (597172667).

2985863305 is an equidigital number, since it uses as much as digits as its factorization.

2985863305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597172666.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The square root of 2985863305 is about 54643.0535841474. The cubic root of 2985863305 is about 1439.9805978932.

The spelling of 2985863305 in words is "two billion, nine hundred eighty-five million, eight hundred sixty-three thousand, three hundred five".