810004193 has 2 divisors, whose sum is σ = 810004194. Its totient is φ = 810004192.

The previous prime is 810004171. The next prime is 810004243. The reversal of 810004193 is 391400018.

810004193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 735060544 + 74943649 = 27112^2 + 8657^2 .

It is a cyclic number.

It is not a de Polignac number, because 810004193 - 2¹² = 810000097 is a prime.

It is a super-2 number, since 2×810004193² = 1312213585355162498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (810004103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405002096 + 405002097.

It is an arithmetic number, because the mean of its divisors is an integer number (405002097).

Almost surely, 2^810004193 is an apocalyptic number.

It is an amenable number.

810004193 is a deficient number, since it is larger than the sum of its proper divisors (1).

810004193 is an equidigital number, since it uses as much as digits as its factorization.

810004193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 810004193 is about 28460.5726049214. The cubic root of 810004193 is about 932.1713602557.

The spelling of 810004193 in words is "eight hundred ten million, four thousand, one hundred ninety-three".