728707000 has 128 divisors (see below), whose sum is σ = 2051712000. Its totient is φ = 236649600.

The previous prime is 728706961. The next prime is 728707027. The reversal of 728707000 is 707827.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 130261 + ... + 135739.

It is an arithmetic number, because the mean of its divisors is an integer number (16029000).

Almost surely, 2^728707000 is an apocalyptic number.

728707000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728707000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025856000).

728707000 is an abundant number, since it is smaller than the sum of its proper divisors (1323005000).

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

728707000 is a wasteful number, since it uses less digits than its factorization.

728707000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5526 (or 5512 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 728707000 is about 26994.5735287669. The cubic root of 728707000 is about 899.8794077107.

The spelling of 728707000 in words is "seven hundred twenty-eight million, seven hundred seven thousand".