1078423837 has 2 divisors, whose sum is σ = 1078423838. Its totient is φ = 1078423836.

The previous prime is 1078423823. The next prime is 1078423891. The reversal of 1078423837 is 7383248701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1032915321 + 45508516 = 32139^2 + 6746^2 .

It is a cyclic number.

It is not a de Polignac number, because 1078423837 - 2¹¹ = 1078421789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1078423793 and 1078423802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1078423537) 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, 539211918 + 539211919.

It is an arithmetic number, because the mean of its divisors is an integer number (539211919).

Almost surely, 2^1078423837 is an apocalyptic number.

It is an amenable number.

1078423837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078423837 is an equidigital number, since it uses as much as digits as its factorization.

1078423837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 1078423837 is about 32839.3641381803. The cubic root of 1078423837 is about 1025.4862137437.

The spelling of 1078423837 in words is "one billion, seventy-eight million, four hundred twenty-three thousand, eight hundred thirty-seven".