820127207 has 2 divisors, whose sum is σ = 820127208. Its totient is φ = 820127206.

The previous prime is 820127201. The next prime is 820127263. The reversal of 820127207 is 702721028.

820127207 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 is a cyclic number.

It is not a de Polignac number, because 820127207 - 2¹² = 820123111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 820127207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (820127201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410063603 + 410063604.

It is an arithmetic number, because the mean of its divisors is an integer number (410063604).

Almost surely, 2^820127207 is an apocalyptic number.

820127207 is a deficient number, since it is larger than the sum of its proper divisors (1).

820127207 is an equidigital number, since it uses as much as digits as its factorization.

820127207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 820127207 is about 28637.8631709840. The cubic root of 820127207 is about 936.0385600150.

The spelling of 820127207 in words is "eight hundred twenty million, one hundred twenty-seven thousand, two hundred seven".