84947143 has 8 divisors (see below), whose sum is σ = 85561056. Its totient is φ = 84336000.

The previous prime is 84947131. The next prime is 84947171. The reversal of 84947143 is 34174948.

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 84947143 - 2⁵ = 84947111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84947096 and 84947105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84947173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141043 + ... + 141643.

It is an arithmetic number, because the mean of its divisors is an integer number (10695132).

Almost surely, 2^84947143 is an apocalyptic number.

84947143 is a deficient number, since it is larger than the sum of its proper divisors (613913).

84947143 is a wasteful number, since it uses less digits than its factorization.

84947143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385.

The product of its digits is 96768, while the sum is 40.

The square root of 84947143 is about 9216.6774382095. The cubic root of 84947143 is about 439.5918097979.

The spelling of 84947143 in words is "eighty-four million, nine hundred forty-seven thousand, one hundred forty-three".