620066667 has 16 divisors (see below), whose sum is σ = 903893760. Its totient is φ = 374973600.

The previous prime is 620066651. The next prime is 620066677. The reversal of 620066667 is 766660026.

It is not a de Polignac number, because 620066667 - 2⁴ = 620066651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620066677) 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 in 15 ways as a sum of consecutive naturals, for example, 5167 + ... + 35592.

It is an arithmetic number, because the mean of its divisors is an integer number (56493360).

Almost surely, 2^620066667 is an apocalyptic number.

620066667 is a deficient number, since it is larger than the sum of its proper divisors (283827093).

620066667 is a wasteful number, since it uses less digits than its factorization.

620066667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41234.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 620066667 is about 24901.1378655675. The cubic root of 620066667 is about 852.7324601776.

The spelling of 620066667 in words is "six hundred twenty million, sixty-six thousand, six hundred sixty-seven".