727871972 has 12 divisors (see below), whose sum is σ = 1276010736. Its totient is φ = 363297480.

The previous prime is 727871959. The next prime is 727871999. The reversal of 727871972 is 279178727.

727871972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 727871972.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157058 + ... + 161625.

It is an arithmetic number, because the mean of its divisors is an integer number (106334228).

Almost surely, 2^727871972 is an apocalyptic number.

It is an amenable number.

727871972 is a deficient number, since it is larger than the sum of its proper divisors (548138764).

727871972 is a wasteful number, since it uses less digits than its factorization.

727871972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319258 (or 319256 counting only the distinct ones).

The product of its digits is 691488, while the sum is 50.

The square root of 727871972 is about 26979.1025054578. The cubic root of 727871972 is about 899.5355513071.

The spelling of 727871972 in words is "seven hundred twenty-seven million, eight hundred seventy-one thousand, nine hundred seventy-two".