84728573 has 16 divisors (see below), whose sum is σ = 90744192. Its totient is φ = 78936000.

The previous prime is 84728569. The next prime is 84728587. The reversal of 84728573 is 37582748.

It is a happy number.

It is not a de Polignac number, because 84728573 - 2² = 84728569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84728513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183563 + ... + 184023.

It is an arithmetic number, because the mean of its divisors is an integer number (5671512).

Almost surely, 2^84728573 is an apocalyptic number.

It is an amenable number.

84728573 is a deficient number, since it is larger than the sum of its proper divisors (6015619).

84728573 is a wasteful number, since it uses less digits than its factorization.

84728573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676.

The product of its digits is 376320, while the sum is 44.

The square root of 84728573 is about 9204.8124913004. The cubic root of 84728573 is about 439.2144610026.

The spelling of 84728573 in words is "eighty-four million, seven hundred twenty-eight thousand, five hundred seventy-three".