804806993 has 2 divisors, whose sum is σ = 804806994. Its totient is φ = 804806992.

The previous prime is 804806987. The next prime is 804807011. The reversal of 804806993 is 399608408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 741636289 + 63170704 = 27233^2 + 7948^2 .

It is a cyclic number.

It is not a de Polignac number, because 804806993 - 2⁶ = 804806929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (804806923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402403496 + 402403497.

It is an arithmetic number, because the mean of its divisors is an integer number (402403497).

Almost surely, 2^804806993 is an apocalyptic number.

It is an amenable number.

804806993 is a deficient number, since it is larger than the sum of its proper divisors (1).

804806993 is an equidigital number, since it uses as much as digits as its factorization.

804806993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 804806993 is about 28369.1204128715. The cubic root of 804806993 is about 930.1733954256.

The spelling of 804806993 in words is "eight hundred four million, eight hundred six thousand, nine hundred ninety-three".