816650227 has 2 divisors, whose sum is σ = 816650228. Its totient is φ = 816650226.

The previous prime is 816650183. The next prime is 816650231. The reversal of 816650227 is 722056618.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816650227 is a prime.

It is not a weakly prime, because it can be changed into another prime (816650257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408325113 + 408325114.

It is an arithmetic number, because the mean of its divisors is an integer number (408325114).

Almost surely, 2^816650227 is an apocalyptic number.

816650227 is a deficient number, since it is larger than the sum of its proper divisors (1).

816650227 is an equidigital number, since it uses as much as digits as its factorization.

816650227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 816650227 is about 28577.0926967738. The cubic root of 816650227 is about 934.7138884561.

The spelling of 816650227 in words is "eight hundred sixteen million, six hundred fifty thousand, two hundred twenty-seven".