728301297 has 8 divisors (see below), whose sum is σ = 973868256. Its totient is φ = 484134272.

The previous prime is 728301289. The next prime is 728301307. The reversal of 728301297 is 792103827.

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 728301297 - 2³ = 728301289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728301257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348768 + ... + 350849.

It is an arithmetic number, because the mean of its divisors is an integer number (121733532).

Almost surely, 2^728301297 is an apocalyptic number.

It is an amenable number.

728301297 is a deficient number, since it is larger than the sum of its proper divisors (245566959).

728301297 is a wasteful number, since it uses less digits than its factorization.

728301297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699967.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 728301297 is about 26987.0579537674. The cubic root of 728301297 is about 899.7123759915.

The spelling of 728301297 in words is "seven hundred twenty-eight million, three hundred one thousand, two hundred ninety-seven".