1048821 has 8 divisors (see below), whose sum is σ = 1432704. Its totient is φ = 682080.

The previous prime is 1048807. The next prime is 1048829. The reversal of 1048821 is 1288401.

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

It is not a de Polignac number, because 1048821 - 2⁹ = 1048309 is a prime.

It is a super-2 number, since 2×1048821² = 2200050980082, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1048791 and 1048800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4141 + ... + 4386.

It is an arithmetic number, because the mean of its divisors is an integer number (179088).

2^1048821 is an apocalyptic number.

It is an amenable number.

1048821 is a deficient number, since it is larger than the sum of its proper divisors (383883).

1048821 is an equidigital number, since it uses as much as digits as its factorization.

1048821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8571.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1048821 is about 1024.1196219192. The cubic root of 1048821 is about 101.6015791703.

The spelling of 1048821 in words is "one million, forty-eight thousand, eight hundred twenty-one".