727650647 has 2 divisors, whose sum is σ = 727650648. Its totient is φ = 727650646.

The previous prime is 727650587. The next prime is 727650653. The reversal of 727650647 is 746056727.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-727650647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 727650598 and 727650607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727650047) by changing a digit.

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 as a sum of consecutive naturals, namely, 363825323 + 363825324.

It is an arithmetic number, because the mean of its divisors is an integer number (363825324).

Almost surely, 2^727650647 is an apocalyptic number.

727650647 is a deficient number, since it is larger than the sum of its proper divisors (1).

727650647 is an equidigital number, since it uses as much as digits as its factorization.

727650647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 44.

The square root of 727650647 is about 26975.0004077850. Note that the first 3 decimals coincide. The cubic root of 727650647 is about 899.4443677399. Note that the first 3 decimals are identical.

The spelling of 727650647 in words is "seven hundred twenty-seven million, six hundred fifty thousand, six hundred forty-seven".