90000084443 has 2 divisors, whose sum is σ = 90000084444. Its totient is φ = 90000084442.

The previous prime is 90000084439. The next prime is 90000084467. The reversal of 90000084443 is 34448000009.

It is a weak prime.

It is an emirp because it is prime and its reverse (34448000009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90000084443 - 2² = 90000084439 is a prime.

It is not a weakly prime, because it can be changed into another prime (90000084743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45000042221 + 45000042222.

It is an arithmetic number, because the mean of its divisors is an integer number (45000042222).

Almost surely, 2^90000084443 is an apocalyptic number.

90000084443 is a deficient number, since it is larger than the sum of its proper divisors (1).

90000084443 is an equidigital number, since it uses as much as digits as its factorization.

90000084443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 90000084443 in words is "ninety billion, eighty-four thousand, four hundred forty-three".