2724985 has 8 divisors (see below), whose sum is σ = 3382920. Its totient is φ = 2104704.

The previous prime is 2724979. The next prime is 2724989. The reversal of 2724985 is 5894272.

2724985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 522729 + 2202256 = 723^2 + 1484^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2724985 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 7⁵ + 2¹⁹ + 4 + 9⁴ + 8⁷ + 5⁷ .

It is not an unprimeable number, because it can be changed into a prime (2724989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9252 + ... + 9541.

It is an arithmetic number, because the mean of its divisors is an integer number (422865).

2^2724985 is an apocalyptic number.

It is an amenable number.

2724985 is a deficient number, since it is larger than the sum of its proper divisors (657935).

2724985 is a wasteful number, since it uses less digits than its factorization.

2724985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18827.

The product of its digits is 40320, while the sum is 37.

The square root of 2724985 is about 1650.7528585467. The cubic root of 2724985 is about 139.6758657754.

The spelling of 2724985 in words is "two million, seven hundred twenty-four thousand, nine hundred eighty-five".