810093331 has 2 divisors, whose sum is σ = 810093332. Its totient is φ = 810093330.

The previous prime is 810093313. The next prime is 810093371. The reversal of 810093331 is 133390018.

Together with previous prime (810093313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 810093331 - 2⁷ = 810093203 is a prime.

It is a super-2 number, since 2×810093331² = 1312502409861351122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 810093331.

It is not a weakly prime, because it can be changed into another prime (810093301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405046665 + 405046666.

It is an arithmetic number, because the mean of its divisors is an integer number (405046666).

Almost surely, 2^810093331 is an apocalyptic number.

810093331 is a deficient number, since it is larger than the sum of its proper divisors (1).

810093331 is an equidigital number, since it uses as much as digits as its factorization.

810093331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 810093331 is about 28462.1385528214. The cubic root of 810093331 is about 932.2055530182.

The spelling of 810093331 in words is "eight hundred ten million, ninety-three thousand, three hundred thirty-one".