727648837 has 2 divisors, whose sum is σ = 727648838. Its totient is φ = 727648836.

The previous prime is 727648811. The next prime is 727648847. The reversal of 727648837 is 738846727.

727648837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 719634276 + 8014561 = 26826^2 + 2831^2 .

It is a cyclic number.

It is not a de Polignac number, because 727648837 - 2¹¹ = 727646789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727648847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363824418 + 363824419.

It is an arithmetic number, because the mean of its divisors is an integer number (363824419).

Almost surely, 2^727648837 is an apocalyptic number.

It is an amenable number.

727648837 is a deficient number, since it is larger than the sum of its proper divisors (1).

727648837 is an equidigital number, since it uses as much as digits as its factorization.

727648837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3161088, while the sum is 52.

The square root of 727648837 is about 26974.9668581817. The cubic root of 727648837 is about 899.4436219628.

The spelling of 727648837 in words is "seven hundred twenty-seven million, six hundred forty-eight thousand, eight hundred thirty-seven".