863424791 has 2 divisors, whose sum is σ = 863424792. Its totient is φ = 863424790.

The previous prime is 863424787. The next prime is 863424817. The reversal of 863424791 is 197424368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 863424791 - 2² = 863424787 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863424721) 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, 431712395 + 431712396.

It is an arithmetic number, because the mean of its divisors is an integer number (431712396).

Almost surely, 2^863424791 is an apocalyptic number.

863424791 is a deficient number, since it is larger than the sum of its proper divisors (1).

863424791 is an equidigital number, since it uses as much as digits as its factorization.

863424791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 863424791 is about 29384.0907805567. The cubic root of 863424791 is about 952.2292214410.

The spelling of 863424791 in words is "eight hundred sixty-three million, four hundred twenty-four thousand, seven hundred ninety-one".