2728248685 has 8 divisors (see below), whose sum is σ = 3274380000. Its totient is φ = 2182277904.

The previous prime is 2728248683. The next prime is 2728248709. The reversal of 2728248685 is 5868428272.

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

It is a cyclic number.

It is not a de Polignac number, because 2728248685 - 2¹ = 2728248683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728248683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114 + ... + 73876.

It is an arithmetic number, because the mean of its divisors is an integer number (409297500).

Almost surely, 2^2728248685 is an apocalyptic number.

It is an amenable number.

2728248685 is a deficient number, since it is larger than the sum of its proper divisors (546131315).

2728248685 is an equidigital number, since it uses as much as digits as its factorization.

2728248685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80267.

The product of its digits is 3440640, while the sum is 52.

The square root of 2728248685 is about 52232.6400347522. The cubic root of 2728248685 is about 1397.3160628496.

The spelling of 2728248685 in words is "two billion, seven hundred twenty-eight million, two hundred forty-eight thousand, six hundred eighty-five".