727282728 has 48 divisors (see below), whose sum is σ = 1980763200. Its totient is φ = 241068960.

The previous prime is 727282727. The next prime is 727282739. The reversal of 727282728 is 827282727.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (727282727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15328 + ... + 41103.

It is an arithmetic number, because the mean of its divisors is an integer number (41265900).

Almost surely, 2^727282728 is an apocalyptic number.

It is an amenable number.

727282728 is an abundant number, since it is smaller than the sum of its proper divisors (1253480472).

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

727282728 is a wasteful number, since it uses less digits than its factorization.

727282728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56622 (or 56615 counting only the distinct ones).

The product of its digits is 351232, while the sum is 45.

The square root of 727282728 is about 26968.1799163384. The cubic root of 727282728 is about 899.2927480656.

Subtracting 727282728 from its reverse (827282727), we obtain a palindrome (99999999).

It can be divided in two parts, 7272 and 82728, that added together give a square (90000 = 300²).

The spelling of 727282728 in words is "seven hundred twenty-seven million, two hundred eighty-two thousand, seven hundred twenty-eight".