821048227 has 16 divisors (see below), whose sum is σ = 873069120. Its totient is φ = 770457600.

The previous prime is 821048219. The next prime is 821048243. The reversal of 821048227 is 722840128.

It is a cyclic number.

It is not a de Polignac number, because 821048227 - 2³ = 821048219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 821048192 and 821048201.

It is not an unprimeable number, because it can be changed into a prime (821048257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1067299 + ... + 1068067.

It is an arithmetic number, because the mean of its divisors is an integer number (54566820).

Almost surely, 2^821048227 is an apocalyptic number.

821048227 is a deficient number, since it is larger than the sum of its proper divisors (52020893).

821048227 is a wasteful number, since it uses less digits than its factorization.

821048227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 821048227 is about 28653.9391183830. The cubic root of 821048227 is about 936.3888258867.

The spelling of 821048227 in words is "eight hundred twenty-one million, forty-eight thousand, two hundred twenty-seven".