728542147 has 8 divisors (see below), whose sum is σ = 764281440. Its totient is φ = 693510720.

The previous prime is 728542109. The next prime is 728542153. The reversal of 728542147 is 741245827.

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

It is a cyclic number.

It is not a de Polignac number, because 728542147 - 2⁷ = 728542019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728542447) by changing a digit.

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, 174858 + ... + 178975.

It is an arithmetic number, because the mean of its divisors is an integer number (95535180).

Almost surely, 2^728542147 is an apocalyptic number.

728542147 is a deficient number, since it is larger than the sum of its proper divisors (35739293).

728542147 is a wasteful number, since it uses less digits than its factorization.

728542147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353933.

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

The square root of 728542147 is about 26991.5199090381. The cubic root of 728542147 is about 899.8115436683.

The spelling of 728542147 in words is "seven hundred twenty-eight million, five hundred forty-two thousand, one hundred forty-seven".