620825047 has 2 divisors, whose sum is σ = 620825048. Its totient is φ = 620825046.

The previous prime is 620825041. The next prime is 620825071. The reversal of 620825047 is 740528026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620825047 - 2¹¹ = 620822999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620825041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310412523 + 310412524.

It is an arithmetic number, because the mean of its divisors is an integer number (310412524).

Almost surely, 2^620825047 is an apocalyptic number.

620825047 is a deficient number, since it is larger than the sum of its proper divisors (1).

620825047 is an equidigital number, since it uses as much as digits as its factorization.

620825047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 620825047 is about 24916.3610304555. The cubic root of 620825047 is about 853.0799667750.

The spelling of 620825047 in words is "six hundred twenty million, eight hundred twenty-five thousand, forty-seven".