620552927 has 2 divisors, whose sum is σ = 620552928. Its totient is φ = 620552926.

The previous prime is 620552897. The next prime is 620552929. The reversal of 620552927 is 729255026.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620552927 - 2¹⁶ = 620487391 is a prime.

Together with 620552929, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620552929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310276463 + 310276464.

It is an arithmetic number, because the mean of its divisors is an integer number (310276464).

Almost surely, 2^620552927 is an apocalyptic number.

620552927 is a deficient number, since it is larger than the sum of its proper divisors (1).

620552927 is an equidigital number, since it uses as much as digits as its factorization.

620552927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 620552927 is about 24910.8997629552. The cubic root of 620552927 is about 852.9553079052.

The spelling of 620552927 in words is "six hundred twenty million, five hundred fifty-two thousand, nine hundred twenty-seven".