84471745 has 8 divisors (see below), whose sum is σ = 104636160. Its totient is φ = 65397360.

The previous prime is 84471713. The next prime is 84471781. The reversal of 84471745 is 54717448.

It is a happy number.

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

It is not a de Polignac number, because 84471745 - 2⁵ = 84471713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84471698 and 84471707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272335 + ... + 272644.

It is an arithmetic number, because the mean of its divisors is an integer number (13079520).

Almost surely, 2^84471745 is an apocalyptic number.

It is an amenable number.

84471745 is a deficient number, since it is larger than the sum of its proper divisors (20164415).

84471745 is a wasteful number, since it uses less digits than its factorization.

84471745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545015.

The product of its digits is 125440, while the sum is 40.

The square root of 84471745 is about 9190.8511575370. The cubic root of 84471745 is about 438.7702317221.

The spelling of 84471745 in words is "eighty-four million, four hundred seventy-one thousand, seven hundred forty-five".