2128827 has 4 divisors (see below), whose sum is σ = 2838440. Its totient is φ = 1419216.

The previous prime is 2128823. The next prime is 2128831. The reversal of 2128827 is 7288212.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2128823) and next prime (2128831).

It is not a de Polignac number, because 2128827 - 2² = 2128823 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 2128794 and 2128803.

It is not an unprimeable number, because it can be changed into a prime (2128823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354802 + ... + 354807.

It is an arithmetic number, because the mean of its divisors is an integer number (709610).

2^2128827 is an apocalyptic number.

2128827 is a deficient number, since it is larger than the sum of its proper divisors (709613).

2128827 is an equidigital number, since it uses as much as digits as its factorization.

2128827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709612.

The product of its digits is 3584, while the sum is 30.

The square root of 2128827 is about 1459.0500334122. The cubic root of 2128827 is about 128.6412120293.

The spelling of 2128827 in words is "two million, one hundred twenty-eight thousand, eight hundred twenty-seven".