728856027 has 12 divisors (see below), whose sum is σ = 1053625560. Its totient is φ = 485519328.

The previous prime is 728856019. The next prime is 728856061. The reversal of 728856027 is 720658827.

728856027 is a `hidden beast` number, since 7 + 2 + 88 + 560 + 2 + 7 = 666.

It is not a de Polignac number, because 728856027 - 2³ = 728856019 is a prime.

It is a super-2 number, since 2×728856027² = 1062462216188449458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (728856067) 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 11 ways as a sum of consecutive naturals, for example, 19813 + ... + 43014.

It is an arithmetic number, because the mean of its divisors is an integer number (87802130).

Almost surely, 2^728856027 is an apocalyptic number.

728856027 is a deficient number, since it is larger than the sum of its proper divisors (324769533).

728856027 is a wasteful number, since it uses less digits than its factorization.

728856027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64122 (or 64119 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 728856027 is about 26997.3337016825. Note that the first 3 decimals coincide. The cubic root of 728856027 is about 899.9407479510.

The spelling of 728856027 in words is "seven hundred twenty-eight million, eight hundred fifty-six thousand, twenty-seven".