728899776 has 224 divisors, whose sum is σ = 2414991360. Its totient is φ = 213580800.

The previous prime is 728899771. The next prime is 728899777. The reversal of 728899776 is 677998827.

It is not an unprimeable number, because it can be changed into a prime (728899771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 588630 + ... + 589866.

Almost surely, 2^728899776 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 728899776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207495680).

728899776 is an abundant number, since it is smaller than the sum of its proper divisors (1686091584).

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

728899776 is a wasteful number, since it uses less digits than its factorization.

728899776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300 (or 1284 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 63.

The square root of 728899776 is about 26998.1439362042. The cubic root of 728899776 is about 899.9587536653.

The spelling of 728899776 in words is "seven hundred twenty-eight million, eight hundred ninety-nine thousand, seven hundred seventy-six".