810826099 has 2 divisors, whose sum is σ = 810826100. Its totient is φ = 810826098.

The previous prime is 810826073. The next prime is 810826123. The reversal of 810826099 is 990628018.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 810826099 - 2⁷ = 810825971 is a prime.

It is not a weakly prime, because it can be changed into another prime (810826069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405413049 + 405413050.

It is an arithmetic number, because the mean of its divisors is an integer number (405413050).

Almost surely, 2^810826099 is an apocalyptic number.

810826099 is a deficient number, since it is larger than the sum of its proper divisors (1).

810826099 is an equidigital number, since it uses as much as digits as its factorization.

810826099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 810826099 is about 28475.0083230892. The cubic root of 810826099 is about 932.4865430858.

The spelling of 810826099 in words is "eight hundred ten million, eight hundred twenty-six thousand, ninety-nine".