728773108 has 48 divisors (see below), whose sum is σ = 1496154240. Its totient is φ = 304147584.

The previous prime is 728773099. The next prime is 728773109. The reversal of 728773108 is 801377827.

728773108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×728773108² = 1062220485887959328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728773109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204510 + ... + 208042.

It is an arithmetic number, because the mean of its divisors is an integer number (31169880).

Almost surely, 2^728773108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728773108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748077120).

728773108 is an abundant number, since it is smaller than the sum of its proper divisors (767381132).

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

728773108 is a wasteful number, since it uses less digits than its factorization.

728773108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736 (or 3734 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 728773108 is about 26995.7979693137. The cubic root of 728773108 is about 899.9066191180.

The spelling of 728773108 in words is "seven hundred twenty-eight million, seven hundred seventy-three thousand, one hundred eight".