728787308 has 24 divisors (see below), whose sum is σ = 1318324224. Its totient is φ = 352155600.

The previous prime is 728787307. The next prime is 728787317. The reversal of 728787308 is 803787827.

728787308 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 2×728787308² = 1062261880603773728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (728787307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96941 + ... + 104187.

It is an arithmetic number, because the mean of its divisors is an integer number (54930176).

Almost surely, 2^728787308 is an apocalyptic number.

It is an amenable number.

728787308 is a deficient number, since it is larger than the sum of its proper divisors (589536916).

728787308 is a wasteful number, since it uses less digits than its factorization.

728787308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8093 (or 8091 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 50.

The square root of 728787308 is about 26996.0609719270. The cubic root of 728787308 is about 899.9124639143.

The spelling of 728787308 in words is "seven hundred twenty-eight million, seven hundred eighty-seven thousand, three hundred eight".