727972330 has 16 divisors (see below), whose sum is σ = 1310768424. Its totient is φ = 291096000.

The previous prime is 727972321. The next prime is 727972337. The reversal of 727972330 is 33279727.

It can be written as a sum of positive squares in 4 ways, for example, as 606686161 + 121286169 = 24631^2 + 11013^2 .

It is not an unprimeable number, because it can be changed into a prime (727972337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27580 + ... + 47080.

Almost surely, 2^727972330 is an apocalyptic number.

727972330 is a deficient number, since it is larger than the sum of its proper divisors (582796094).

727972330 is a wasteful number, since it uses less digits than its factorization.

727972330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23241.

The product of its (nonzero) digits is 111132, while the sum is 40.

The square root of 727972330 is about 26980.9623623769. The cubic root of 727972330 is about 899.5768916543.

The spelling of 727972330 in words is "seven hundred twenty-seven million, nine hundred seventy-two thousand, three hundred thirty".