1284379 has 2 divisors, whose sum is σ = 1284380. Its totient is φ = 1284378.

The previous prime is 1284373. The next prime is 1284383. The reversal of 1284379 is 9734821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1284379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1284373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642189 + 642190.

It is an arithmetic number, because the mean of its divisors is an integer number (642190).

2^1284379 is an apocalyptic number.

1284379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284379 is an equidigital number, since it uses as much as digits as its factorization.

1284379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 1284379 is about 1133.3044604165. The cubic root of 1284379 is about 108.7003807636.

The spelling of 1284379 in words is "one million, two hundred eighty-four thousand, three hundred seventy-nine".