728388675 has 54 divisors (see below), whose sum is σ = 1517648028. Its totient is φ = 332972640.

The previous prime is 728388673. The next prime is 728388677. The reversal of 728388675 is 576883827.

728388675 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (728388673) and next prime (728388677).

It is not a de Polignac number, because 728388675 - 2¹ = 728388673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728388673) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 22009 + ... + 44058.

Almost surely, 2^728388675 is an apocalyptic number.

728388675 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

728388675 is an abundant number, since it is smaller than the sum of its proper divisors (789259353).

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

728388675 is a wasteful number, since it uses less digits than its factorization.

728388675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66097 (or 66082 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 728388675 is about 26988.6767923142. The cubic root of 728388675 is about 899.7483555715.

It can be divided in two parts, 728 and 388675, that added together give a triangular number (389403 = T₈₈₂).

The spelling of 728388675 in words is "seven hundred twenty-eight million, three hundred eighty-eight thousand, six hundred seventy-five".