1284764671 has 2 divisors, whose sum is σ = 1284764672. Its totient is φ = 1284764670.

The previous prime is 1284764627. The next prime is 1284764711. The reversal of 1284764671 is 1764674821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1284764671 - 2⁷ = 1284764543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1284762671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642382335 + 642382336.

It is an arithmetic number, because the mean of its divisors is an integer number (642382336).

Almost surely, 2^1284764671 is an apocalyptic number.

1284764671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284764671 is an equidigital number, since it uses as much as digits as its factorization.

1284764671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 46.

The square root of 1284764671 is about 35843.6140895418. The cubic root of 1284764671 is about 1087.1125979255.

The spelling of 1284764671 in words is "one billion, two hundred eighty-four million, seven hundred sixty-four thousand, six hundred seventy-one".