818265047 has 2 divisors, whose sum is σ = 818265048. Its totient is φ = 818265046.

The previous prime is 818265023. The next prime is 818265179. The reversal of 818265047 is 740562818.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 818265047 - 2⁶ = 818264983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 818264995 and 818265013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (818264047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409132523 + 409132524.

It is an arithmetic number, because the mean of its divisors is an integer number (409132524).

Almost surely, 2^818265047 is an apocalyptic number.

818265047 is a deficient number, since it is larger than the sum of its proper divisors (1).

818265047 is an equidigital number, since it uses as much as digits as its factorization.

818265047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 818265047 is about 28605.3324923868. The cubic root of 818265047 is about 935.3295746848.

The spelling of 818265047 in words is "eight hundred eighteen million, two hundred sixty-five thousand, forty-seven".