620159963 has 2 divisors, whose sum is σ = 620159964. Its totient is φ = 620159962.

The previous prime is 620159959. The next prime is 620159987. The reversal of 620159963 is 369951026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620159963 - 2² = 620159959 is a prime.

It is a super-2 number, since 2×620159963² = 769196759416322738, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620159963.

It is not a weakly prime, because it can be changed into another prime (620159063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310079981 + 310079982.

It is an arithmetic number, because the mean of its divisors is an integer number (310079982).

Almost surely, 2^620159963 is an apocalyptic number.

620159963 is a deficient number, since it is larger than the sum of its proper divisors (1).

620159963 is an equidigital number, since it uses as much as digits as its factorization.

620159963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 620159963 is about 24903.0111231554. The cubic root of 620159963 is about 852.7752257608.

The spelling of 620159963 in words is "six hundred twenty million, one hundred fifty-nine thousand, nine hundred sixty-three".