1078844813 has 2 divisors, whose sum is σ = 1078844814. Its totient is φ = 1078844812.

The previous prime is 1078844783. The next prime is 1078844827. The reversal of 1078844813 is 3184488701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 995907364 + 82937449 = 31558^2 + 9107^2 .

It is an emirp because it is prime and its reverse (3184488701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1078844813 - 2⁶ = 1078844749 is a prime.

It is a super-2 number, since 2×1078844813² = 2327812261074009938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1078844843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539422406 + 539422407.

It is an arithmetic number, because the mean of its divisors is an integer number (539422407).

Almost surely, 2^1078844813 is an apocalyptic number.

It is an amenable number.

1078844813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078844813 is an equidigital number, since it uses as much as digits as its factorization.

1078844813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 1078844813 is about 32845.7731374982. The cubic root of 1078844813 is about 1025.6196334339.

The spelling of 1078844813 in words is "one billion, seventy-eight million, eight hundred forty-four thousand, eight hundred thirteen".