727919972 has 12 divisors (see below), whose sum is σ = 1371849276. Its totient is φ = 335963040.

The previous prime is 727919947. The next prime is 727919977. The reversal of 727919972 is 279919727.

727919972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 86007076 + 641912896 = 9274^2 + 25336^2 .

It is not an unprimeable number, because it can be changed into a prime (727919977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6999179 + ... + 6999282.

It is an arithmetic number, because the mean of its divisors is an integer number (114320773).

Almost surely, 2^727919972 is an apocalyptic number.

It is an amenable number.

727919972 is a deficient number, since it is larger than the sum of its proper divisors (643929304).

727919972 is a wasteful number, since it uses less digits than its factorization.

727919972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13998478 (or 13998476 counting only the distinct ones).

The product of its digits is 1000188, while the sum is 53.

The square root of 727919972 is about 26979.9920681975. The cubic root of 727919972 is about 899.5553243620. Note that the first 3 decimals are identical.

The spelling of 727919972 in words is "seven hundred twenty-seven million, nine hundred nineteen thousand, nine hundred seventy-two".