2729985 has 32 divisors (see below), whose sum is σ = 4693248. Its totient is φ = 1351680.

The previous prime is 2729983. The next prime is 2730001. The reversal of 2729985 is 5899272.

It is not a de Polignac number, because 2729985 - 2¹ = 2729983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2729983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14049 + ... + 14241.

It is an arithmetic number, because the mean of its divisors is an integer number (146664).

It is a Proth number, since it is equal to 1333 ⋅ 2¹¹ + 1 and 1333 < 2¹¹.

2^2729985 is an apocalyptic number.

It is an amenable number.

2729985 is a deficient number, since it is larger than the sum of its proper divisors (1963263).

2729985 is a wasteful number, since it uses less digits than its factorization.

2729985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265.

The product of its digits is 90720, while the sum is 42.

The square root of 2729985 is about 1652.2666249731. The cubic root of 2729985 is about 139.7612427125.

The spelling of 2729985 in words is "two million, seven hundred twenty-nine thousand, nine hundred eighty-five".