726727628 has 24 divisors (see below), whose sum is σ = 1469001744. Its totient is φ = 310899200.

The previous prime is 726727591. The next prime is 726727643. The reversal of 726727628 is 826727627.

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 7 ways as a sum of consecutive naturals, for example, 485033 + ... + 486528.

It is an arithmetic number, because the mean of its divisors is an integer number (61208406).

Almost surely, 2^726727628 is an apocalyptic number.

It is an amenable number.

726727628 is an abundant number, since it is smaller than the sum of its proper divisors (742274116).

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

726727628 is a wasteful number, since it uses less digits than its factorization.

726727628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971593 (or 971591 counting only the distinct ones).

The product of its digits is 790272, while the sum is 47.

The square root of 726727628 is about 26957.8861930976. The cubic root of 726727628 is about 899.0638941671.

Subtracting 726727628 from its reverse (826727627), we obtain a palindrome (99999999).

The spelling of 726727628 in words is "seven hundred twenty-six million, seven hundred twenty-seven thousand, six hundred twenty-eight".