2728826 has 8 divisors (see below), whose sum is σ = 4109940. Its totient is φ = 1358848.

The previous prime is 2728819. The next prime is 2728841. The reversal of 2728826 is 6288272.

It can be written as a sum of positive squares in 2 ways, for example, as 2725801 + 3025 = 1651^2 + 55^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2141 + ... + 3168.

2^2728826 is an apocalyptic number.

2728826 is a deficient number, since it is larger than the sum of its proper divisors (1381114).

2728826 is a wasteful number, since it uses less digits than its factorization.

2728826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5568.

The product of its digits is 21504, while the sum is 35.

The square root of 2728826 is about 1651.9158574213. The cubic root of 2728826 is about 139.7414616259.

The spelling of 2728826 in words is "two million, seven hundred twenty-eight thousand, eight hundred twenty-six".