1284967 has 2 divisors, whose sum is σ = 1284968. Its totient is φ = 1284966.

The previous prime is 1284937. The next prime is 1284971. The reversal of 1284967 is 7694821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1284967 is a prime.

It is a super-2 number, since 2×1284967² = 3302280382178, which contains 22 as substring.

It is equal to p₉₈₉₅₆ and since 1284967 and 98956 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1284917) 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, 642483 + 642484.

It is an arithmetic number, because the mean of its divisors is an integer number (642484).

2^1284967 is an apocalyptic number.

1284967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284967 is an equidigital number, since it uses as much as digits as its factorization.

1284967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 1284967 is about 1133.5638491060. The cubic root of 1284967 is about 108.7169662295.

The spelling of 1284967 in words is "one million, two hundred eighty-four thousand, nine hundred sixty-seven".