90000084447 has 32 divisors (see below), whose sum is σ = 164102722560. Its totient is φ = 47472570720.

The previous prime is 90000084443. The next prime is 90000084467. The reversal of 90000084447 is 74448000009.

It is not a de Polignac number, because 90000084447 - 2² = 90000084443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90000084443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18312579 + ... + 18317492.

It is an arithmetic number, because the mean of its divisors is an integer number (5128210080).

Almost surely, 2^90000084447 is an apocalyptic number.

90000084447 is a deficient number, since it is larger than the sum of its proper divisors (74102638113).

90000084447 is a wasteful number, since it uses less digits than its factorization.

90000084447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36630100 (or 36630094 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 90000084447 in words is "ninety billion, eighty-four thousand, four hundred forty-seven".