620620067 has 4 divisors (see below), whose sum is σ = 623195496. Its totient is φ = 618044640.

The previous prime is 620620057. The next prime is 620620079. The reversal of 620620067 is 760026026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620620067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620620057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287353 + ... + 1287834.

It is an arithmetic number, because the mean of its divisors is an integer number (155798874).

Almost surely, 2^620620067 is an apocalyptic number.

620620067 is a deficient number, since it is larger than the sum of its proper divisors (2575429).

620620067 is a wasteful number, since it uses less digits than its factorization.

620620067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575428.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 620620067 is about 24912.2473293760. The cubic root of 620620067 is about 852.9860682974.

The spelling of 620620067 in words is "six hundred twenty million, six hundred twenty thousand, sixty-seven".