804978743 has 2 divisors, whose sum is σ = 804978744. Its totient is φ = 804978742.

The previous prime is 804978703. The next prime is 804978749. The reversal of 804978743 is 347879408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 804978743 - 2¹² = 804974647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 804978691 and 804978700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (804978749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402489371 + 402489372.

It is an arithmetic number, because the mean of its divisors is an integer number (402489372).

Almost surely, 2^804978743 is an apocalyptic number.

804978743 is a deficient number, since it is larger than the sum of its proper divisors (1).

804978743 is an equidigital number, since it uses as much as digits as its factorization.

804978743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 804978743 is about 28372.1473103465. The cubic root of 804978743 is about 930.2395586668.

The spelling of 804978743 in words is "eight hundred four million, nine hundred seventy-eight thousand, seven hundred forty-three".