84066047 has 8 divisors (see below), whose sum is σ = 90620880. Its totient is φ = 77523840.

The previous prime is 84066029. The next prime is 84066049. The reversal of 84066047 is 74066048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84066047 - 2²⁶ = 16957183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84065998 and 84066016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84066049) 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 in 7 ways as a sum of consecutive naturals, for example, 14279 + ... + 19287.

It is an arithmetic number, because the mean of its divisors is an integer number (11327610).

Almost surely, 2^84066047 is an apocalyptic number.

84066047 is a deficient number, since it is larger than the sum of its proper divisors (6554833).

84066047 is a wasteful number, since it uses less digits than its factorization.

84066047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6313.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 84066047 is about 9168.7538411717. The cubic root of 84066047 is about 438.0666672915.

Subtracting from 84066047 its reverse (74066048), we obtain a palindrome (9999999).

The spelling of 84066047 in words is "eighty-four million, sixty-six thousand, forty-seven".