728012750 has 16 divisors (see below), whose sum is σ = 1362840336. Its totient is φ = 291205000.

The previous prime is 728012731. The next prime is 728012843. The reversal of 728012750 is 57210827.

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, 1455776 + ... + 1456275.

It is an arithmetic number, because the mean of its divisors is an integer number (85177521).

Almost surely, 2^728012750 is an apocalyptic number.

728012750 is a deficient number, since it is larger than the sum of its proper divisors (634827586).

728012750 is a wasteful number, since it uses less digits than its factorization.

728012750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912068 (or 2912058 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 728012750 is about 26981.7113986493. The cubic root of 728012750 is about 899.5935407418.

The spelling of 728012750 in words is "seven hundred twenty-eight million, twelve thousand, seven hundred fifty".