8404386143 has 2 divisors, whose sum is σ = 8404386144. Its totient is φ = 8404386142.

The previous prime is 8404386131. The next prime is 8404386149. The reversal of 8404386143 is 3416834048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8404386143 - 2⁶ = 8404386079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8404386143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8404386149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4202193071 + 4202193072.

It is an arithmetic number, because the mean of its divisors is an integer number (4202193072).

Almost surely, 2^8404386143 is an apocalyptic number.

8404386143 is a deficient number, since it is larger than the sum of its proper divisors (1).

8404386143 is an equidigital number, since it uses as much as digits as its factorization.

8404386143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 8404386143 is about 91675.4391481164. The cubic root of 8404386143 is about 2033.1464663321.

The spelling of 8404386143 in words is "eight billion, four hundred four million, three hundred eighty-six thousand, one hundred forty-three".