620254633 has 2 divisors, whose sum is σ = 620254634. Its totient is φ = 620254632.

The previous prime is 620254631. The next prime is 620254681. The reversal of 620254633 is 336452026.

It is a happy number.

620254633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 510172569 + 110082064 = 22587^2 + 10492^2 .

It is a cyclic number.

It is not a de Polignac number, because 620254633 - 2¹ = 620254631 is a prime.

Together with 620254631, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 620254595 and 620254604.

It is not a weakly prime, because it can be changed into another prime (620254631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310127316 + 310127317.

It is an arithmetic number, because the mean of its divisors is an integer number (310127317).

Almost surely, 2^620254633 is an apocalyptic number.

It is an amenable number.

620254633 is a deficient number, since it is larger than the sum of its proper divisors (1).

620254633 is an equidigital number, since it uses as much as digits as its factorization.

620254633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 620254633 is about 24904.9118247787. The cubic root of 620254633 is about 852.8186167824.

The spelling of 620254633 in words is "six hundred twenty million, two hundred fifty-four thousand, six hundred thirty-three".