728804502 has 12 divisors (see below), whose sum is σ = 1579076460. Its totient is φ = 242934828.

The previous prime is 728804471. The next prime is 728804507. The reversal of 728804502 is 205408827.

It is a happy number.

728804502 is a `hidden beast` number, since 72 + 8 + 80 + 4 + 502 = 666.

728804502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728804507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20244552 + ... + 20244587.

It is an arithmetic number, because the mean of its divisors is an integer number (131589705).

Almost surely, 2^728804502 is an apocalyptic number.

728804502 is an abundant number, since it is smaller than the sum of its proper divisors (850271958).

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

728804502 is a wasteful number, since it uses less digits than its factorization.

728804502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40489147 (or 40489144 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 728804502 is about 26996.3794239153. The cubic root of 728804502 is about 899.9195409554.

The spelling of 728804502 in words is "seven hundred twenty-eight million, eight hundred four thousand, five hundred two".