2728834 has 4 divisors (see below), whose sum is σ = 4093254. Its totient is φ = 1364416.

The previous prime is 2728819. The next prime is 2728841. The reversal of 2728834 is 4388272.

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

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 88209 = 1625^2 + 297^2 .

It is a d-powerful number, because it can be written as 2⁷ + 7⁴ + 2¹⁹ + 8⁵ + 8⁷ + 3⁸ + 4⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 2728834.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682207 + ... + 682210.

2^2728834 is an apocalyptic number.

2728834 is a deficient number, since it is larger than the sum of its proper divisors (1364420).

2728834 is a wasteful number, since it uses less digits than its factorization.

2728834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364419.

The product of its digits is 21504, while the sum is 34.

The square root of 2728834 is about 1651.9182788504. The cubic root of 2728834 is about 139.7415981841.

The spelling of 2728834 in words is "two million, seven hundred twenty-eight thousand, eight hundred thirty-four".