620925727 has 2 divisors, whose sum is σ = 620925728. Its totient is φ = 620925726.

The previous prime is 620925713. The next prime is 620925787. The reversal of 620925727 is 727529026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620925727 - 2¹¹ = 620923679 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620925727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620925707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310462863 + 310462864.

It is an arithmetic number, because the mean of its divisors is an integer number (310462864).

Almost surely, 2^620925727 is an apocalyptic number.

620925727 is a deficient number, since it is larger than the sum of its proper divisors (1).

620925727 is an equidigital number, since it uses as much as digits as its factorization.

620925727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 620925727 is about 24918.3813077816. The cubic root of 620925727 is about 853.1260793091.

The spelling of 620925727 in words is "six hundred twenty million, nine hundred twenty-five thousand, seven hundred twenty-seven".