2100827 has 4 divisors (see below), whose sum is σ = 2104896. Its totient is φ = 2096760.

The previous prime is 2100821. The next prime is 2100841. The reversal of 2100827 is 7280012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100827 - 2¹⁴ = 2084443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100799 and 2100808.

It is not an unprimeable number, because it can be changed into a prime (2100821) 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, 1124 + ... + 2337.

It is an arithmetic number, because the mean of its divisors is an integer number (526224).

2^2100827 is an apocalyptic number.

2100827 is a deficient number, since it is larger than the sum of its proper divisors (4069).

2100827 is an equidigital number, since it uses as much as digits as its factorization.

2100827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2100827 is about 1449.4229886407. The cubic root of 2100827 is about 128.0747244349.

Adding to 2100827 its reverse (7280012), we get a palindrome (9380839).

The spelling of 2100827 in words is "two million, one hundred thousand, eight hundred twenty-seven".