804821611 has 8 divisors (see below), whose sum is σ = 880138800. Its totient is φ = 729863040.

The previous prime is 804821609. The next prime is 804821639. The reversal of 804821611 is 116128408.

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

It is a cyclic number.

It is not a de Polignac number, because 804821611 - 2¹ = 804821609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804821651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84946 + ... + 93943.

It is an arithmetic number, because the mean of its divisors is an integer number (110017350).

Almost surely, 2^804821611 is an apocalyptic number.

804821611 is a deficient number, since it is larger than the sum of its proper divisors (75317189).

804821611 is a wasteful number, since it uses less digits than its factorization.

804821611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179309.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 804821611 is about 28369.3780509901. The cubic root of 804821611 is about 930.1790270832.

The spelling of 804821611 in words is "eight hundred four million, eight hundred twenty-one thousand, six hundred eleven".