2985705 has 24 divisors (see below), whose sum is σ = 5299008. Its totient is φ = 1554336.

The previous prime is 2985701. The next prime is 2985713. The reversal of 2985705 is 5075892.

It is not a de Polignac number, because 2985705 - 2² = 2985701 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2985705.

It is not an unprimeable number, because it can be changed into a prime (2985701) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1164 + ... + 2706.

It is an arithmetic number, because the mean of its divisors is an integer number (220792).

2^2985705 is an apocalyptic number.

It is an amenable number.

2985705 is a deficient number, since it is larger than the sum of its proper divisors (2313303).

2985705 is a wasteful number, since it uses less digits than its factorization.

2985705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 2985705 is about 1727.9192689475. The cubic root of 2985705 is about 143.9955149066.

The spelling of 2985705 in words is "two million, nine hundred eighty-five thousand, seven hundred five".