820076099 has 2 divisors, whose sum is σ = 820076100. Its totient is φ = 820076098.

The previous prime is 820076071. The next prime is 820076111. The reversal of 820076099 is 990670028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 820076099 - 2¹² = 820072003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (820076599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410038049 + 410038050.

It is an arithmetic number, because the mean of its divisors is an integer number (410038050).

Almost surely, 2^820076099 is an apocalyptic number.

820076099 is a deficient number, since it is larger than the sum of its proper divisors (1).

820076099 is an equidigital number, since it uses as much as digits as its factorization.

820076099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 820076099 is about 28636.9708419030. The cubic root of 820076099 is about 936.0191158556.

The spelling of 820076099 in words is "eight hundred twenty million, seventy-six thousand, ninety-nine".