2728833 has 4 divisors (see below), whose sum is σ = 3638448. Its totient is φ = 1819220.

The previous prime is 2728819. The next prime is 2728841. The reversal of 2728833 is 3388272.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2728833 - 2⁵ = 2728801 is a prime.

It is a D-number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2728794 and 2728803.

It is not an unprimeable number, because it can be changed into a prime (2728853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454803 + ... + 454808.

It is an arithmetic number, because the mean of its divisors is an integer number (909612).

2^2728833 is an apocalyptic number.

It is an amenable number.

2728833 is a deficient number, since it is larger than the sum of its proper divisors (909615).

2728833 is an equidigital number, since it uses as much as digits as its factorization.

2728833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909614.

The product of its digits is 16128, while the sum is 33.

The square root of 2728833 is about 1651.9179761719. The cubic root of 2728833 is about 139.7415811143.

The spelling of 2728833 in words is "two million, seven hundred twenty-eight thousand, eight hundred thirty-three".