84506473 has 4 divisors (see below), whose sum is σ = 89477460. Its totient is φ = 79535488.

The previous prime is 84506459. The next prime is 84506489. The reversal of 84506473 is 37460548.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22915369 + 61591104 = 4787^2 + 7848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84506473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84506413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2485468 + ... + 2485501.

It is an arithmetic number, because the mean of its divisors is an integer number (22369365).

Almost surely, 2^84506473 is an apocalyptic number.

It is an amenable number.

84506473 is a deficient number, since it is larger than the sum of its proper divisors (4970987).

84506473 is a wasteful number, since it uses less digits than its factorization.

84506473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970986.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 84506473 is about 9192.7402334668. The cubic root of 84506473 is about 438.8303525152.

The spelling of 84506473 in words is "eighty-four million, five hundred six thousand, four hundred seventy-three".