8990642743 has 2 divisors, whose sum is σ = 8990642744. Its totient is φ = 8990642742.

The previous prime is 8990642719. The next prime is 8990642789. The reversal of 8990642743 is 3472460998.

It is a happy number.

8990642743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8990642743 - 2²¹ = 8988545591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8990649743) 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, 4495321371 + 4495321372.

It is an arithmetic number, because the mean of its divisors is an integer number (4495321372).

Almost surely, 2^8990642743 is an apocalyptic number.

8990642743 is a deficient number, since it is larger than the sum of its proper divisors (1).

8990642743 is an equidigital number, since it uses as much as digits as its factorization.

8990642743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 8990642743 is about 94818.9999050823. Note that the first 4 decimals coincide. The cubic root of 8990642743 is about 2079.3626886699.

The spelling of 8990642743 in words is "eight billion, nine hundred ninety million, six hundred forty-two thousand, seven hundred forty-three".