1078643 has 2 divisors, whose sum is σ = 1078644. Its totient is φ = 1078642.

The previous prime is 1078589. The next prime is 1078657. The reversal of 1078643 is 3468701.

It is a strong prime.

It is an emirp because it is prime and its reverse (3468701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1078643 - 2⁸ = 1078387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1078673) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539321 + 539322.

It is an arithmetic number, because the mean of its divisors is an integer number (539322).

2^1078643 is an apocalyptic number.

1078643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078643 is an equidigital number, since it uses as much as digits as its factorization.

1078643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1078643 is about 1038.5773923979. The cubic root of 1078643 is about 102.5555677284. Note that the first 4 decimals are identical.

The spelling of 1078643 in words is "one million, seventy-eight thousand, six hundred forty-three".