620676805 has 16 divisors (see below), whose sum is σ = 852560640. Its totient is φ = 424933632.

The previous prime is 620676803. The next prime is 620676841. The reversal of 620676805 is 508676026.

It is a cyclic number.

It is not a de Polignac number, because 620676805 - 2¹ = 620676803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620676803) 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 15 ways as a sum of consecutive naturals, for example, 8941 + ... + 36349.

It is an arithmetic number, because the mean of its divisors is an integer number (53285040).

Almost surely, 2^620676805 is an apocalyptic number.

It is an amenable number.

620676805 is a deficient number, since it is larger than the sum of its proper divisors (231883835).

620676805 is a wasteful number, since it uses less digits than its factorization.

620676805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28068.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 620676805 is about 24913.3860605097. The cubic root of 620676805 is about 853.0120612526.

The spelling of 620676805 in words is "six hundred twenty million, six hundred seventy-six thousand, eight hundred five".