620904727243 has 2 divisors, whose sum is σ = 620904727244. Its totient is φ = 620904727242.

The previous prime is 620904727207. The next prime is 620904727259. The reversal of 620904727243 is 342727409026.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620904727243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620904727193 and 620904727202.

It is not a weakly prime, because it can be changed into another prime (620904727643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310452363621 + 310452363622.

It is an arithmetic number, because the mean of its divisors is an integer number (310452363622).

Almost surely, 2^620904727243 is an apocalyptic number.

620904727243 is a deficient number, since it is larger than the sum of its proper divisors (1).

620904727243 is an equidigital number, since it uses as much as digits as its factorization.

620904727243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 620904727243 in words is "six hundred twenty billion, nine hundred four million, seven hundred twenty-seven thousand, two hundred forty-three".