728546784 has 48 divisors (see below), whose sum is σ = 2185642368. Its totient is φ = 208156032.

The previous prime is 728546737. The next prime is 728546831. The reversal of 728546784 is 487645827.

It is an interprime number because it is at equal distance from previous prime (728546737) and next prime (728546831).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541402 + ... + 542745.

It is an arithmetic number, because the mean of its divisors is an integer number (45534216).

Almost surely, 2^728546784 is an apocalyptic number.

It is an amenable number.

728546784 is an abundant number, since it is smaller than the sum of its proper divisors (1457095584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

728546784 is a wasteful number, since it uses less digits than its factorization.

728546784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084167 (or 1084159 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 51.

The square root of 728546784 is about 26991.6058062502. The cubic root of 728546784 is about 899.8134526941.

The spelling of 728546784 in words is "seven hundred twenty-eight million, five hundred forty-six thousand, seven hundred eighty-four".