620117089 has 2 divisors, whose sum is σ = 620117090. Its totient is φ = 620117088.

The previous prime is 620117083. The next prime is 620117129. The reversal of 620117089 is 980711026.

It is a happy number.

620117089 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., 524410000 + 95707089 = 22900^2 + 9783^2 .

It is a cyclic number.

It is not a de Polignac number, because 620117089 - 2⁹ = 620116577 is a prime.

It is not a weakly prime, because it can be changed into another prime (620117083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310058544 + 310058545.

It is an arithmetic number, because the mean of its divisors is an integer number (310058545).

Almost surely, 2^620117089 is an apocalyptic number.

It is an amenable number.

620117089 is a deficient number, since it is larger than the sum of its proper divisors (1).

620117089 is an equidigital number, since it uses as much as digits as its factorization.

620117089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 620117089 is about 24902.1502886799. The cubic root of 620117089 is about 852.7555734508.

The spelling of 620117089 in words is "six hundred twenty million, one hundred seventeen thousand, eighty-nine".