8693804821 has 16 divisors (see below), whose sum is σ = 9447894400. Its totient is φ = 7952188608.

The previous prime is 8693804807. The next prime is 8693804843. The reversal of 8693804821 is 1284083968.

It is not a de Polignac number, because 8693804821 - 2²³ = 8685416213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8693804881) 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, 767920 + ... + 779158.

It is an arithmetic number, because the mean of its divisors is an integer number (590493400).

Almost surely, 2^8693804821 is an apocalyptic number.

It is an amenable number.

8693804821 is a deficient number, since it is larger than the sum of its proper divisors (754089579).

8693804821 is a wasteful number, since it uses less digits than its factorization.

8693804821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11788.

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 8693804821 is about 93240.5749714147. The cubic root of 8693804821 is about 2056.2218130287.

The spelling of 8693804821 in words is "eight billion, six hundred ninety-three million, eight hundred four thousand, eight hundred twenty-one".