728365672 has 16 divisors (see below), whose sum is σ = 1368642240. Its totient is φ = 363394416.

The previous prime is 728365667. The next prime is 728365733. The reversal of 728365672 is 276563827.

It is a super-3 number, since 3×728365672³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94618 + ... + 102025.

It is an arithmetic number, because the mean of its divisors is an integer number (85540140).

Almost surely, 2^728365672 is an apocalyptic number.

It is an amenable number.

728365672 is a deficient number, since it is larger than the sum of its proper divisors (640276568).

728365672 is a wasteful number, since it uses less digits than its factorization.

728365672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197112 (or 197108 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The square root of 728365672 is about 26988.2506287458. The cubic root of 728365672 is about 899.7388839208.

The spelling of 728365672 in words is "seven hundred twenty-eight million, three hundred sixty-five thousand, six hundred seventy-two".