620347943 has 2 divisors, whose sum is σ = 620347944. Its totient is φ = 620347942.

The previous prime is 620347939. The next prime is 620348009. The reversal of 620347943 is 349743026.

620347943 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 is a cyclic number.

It is not a de Polignac number, because 620347943 - 2² = 620347939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620347897 and 620347906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620347933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310173971 + 310173972.

It is an arithmetic number, because the mean of its divisors is an integer number (310173972).

Almost surely, 2^620347943 is an apocalyptic number.

620347943 is a deficient number, since it is larger than the sum of its proper divisors (1).

620347943 is an equidigital number, since it uses as much as digits as its factorization.

620347943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 620347943 is about 24906.7850795722. The cubic root of 620347943 is about 852.8613801416.

The spelling of 620347943 in words is "six hundred twenty million, three hundred forty-seven thousand, nine hundred forty-three".