1284971 has 2 divisors, whose sum is σ = 1284972. Its totient is φ = 1284970.

The previous prime is 1284967. The next prime is 1284977. The reversal of 1284971 is 1794821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1284971 - 2² = 1284967 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1284977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642485 + 642486.

It is an arithmetic number, because the mean of its divisors is an integer number (642486).

2^1284971 is an apocalyptic number.

1284971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284971 is an equidigital number, since it uses as much as digits as its factorization.

1284971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 32.

The square root of 1284971 is about 1133.5656134516. The cubic root of 1284971 is about 108.7170790385.

The spelling of 1284971 in words is "one million, two hundred eighty-four thousand, nine hundred seventy-one".