84747047 has 8 divisors (see below), whose sum is σ = 105658752. Its totient is φ = 66036600.

The previous prime is 84747037. The next prime is 84747059. The reversal of 84747047 is 74074748.

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

It is not a de Polignac number, because 84747047 - 2⁴ = 84747031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84746995 and 84747013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84747007) 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, 550229 + ... + 550382.

It is an arithmetic number, because the mean of its divisors is an integer number (13207344).

Almost surely, 2^84747047 is an apocalyptic number.

84747047 is a deficient number, since it is larger than the sum of its proper divisors (20911705).

84747047 is a wasteful number, since it uses less digits than its factorization.

84747047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100629.

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 84747047 is about 9205.8159334195. The cubic root of 84747047 is about 439.2463804131.

The spelling of 84747047 in words is "eighty-four million, seven hundred forty-seven thousand, forty-seven".