720774727 has 2 divisors, whose sum is σ = 720774728. Its totient is φ = 720774726.

The previous prime is 720774697. The next prime is 720774757. The reversal of 720774727 is 727477027.

It is a balanced prime because it is at equal distance from previous prime (720774697) and next prime (720774757).

It is a cyclic number.

It is not a de Polignac number, because 720774727 - 2¹⁹ = 720250439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720774757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360387363 + 360387364.

It is an arithmetic number, because the mean of its divisors is an integer number (360387364).

Almost surely, 2^720774727 is an apocalyptic number.

720774727 is a deficient number, since it is larger than the sum of its proper divisors (1).

720774727 is an equidigital number, since it uses as much as digits as its factorization.

720774727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268912, while the sum is 43.

The square root of 720774727 is about 26847.2480340164. The cubic root of 720774727 is about 896.6023030842.

The spelling of 720774727 in words is "seven hundred twenty million, seven hundred seventy-four thousand, seven hundred twenty-seven".