728814756 has 12 divisors (see below), whose sum is σ = 1700567792. Its totient is φ = 242938248.

The previous prime is 728814733. The next prime is 728814761. The reversal of 728814756 is 657418827.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30367270 + ... + 30367293.

Almost surely, 2^728814756 is an apocalyptic number.

It is an amenable number.

728814756 is an abundant number, since it is smaller than the sum of its proper divisors (971753036).

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

728814756 is a wasteful number, since it uses less digits than its factorization.

728814756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60734570 (or 60734568 counting only the distinct ones).

The product of its digits is 752640, while the sum is 48.

The square root of 728814756 is about 26996.5693376029. The cubic root of 728814756 is about 899.9237614433.

The spelling of 728814756 in words is "seven hundred twenty-eight million, eight hundred fourteen thousand, seven hundred fifty-six".