620314664 has 32 divisors (see below), whose sum is σ = 1172102400. Its totient is φ = 307765440.

The previous prime is 620314661. The next prime is 620314729. The reversal of 620314664 is 466413026.

It is a self number, because there is not a number n which added to its sum of digits gives 620314664.

It is not an unprimeable number, because it can be changed into a prime (620314661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777914 + ... + 778710.

It is an arithmetic number, because the mean of its divisors is an integer number (36628200).

Almost surely, 2^620314664 is an apocalyptic number.

It is an amenable number.

620314664 is a deficient number, since it is larger than the sum of its proper divisors (551787736).

620314664 is a wasteful number, since it uses less digits than its factorization.

620314664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433 (or 1429 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 620314664 is about 24906.1169996449. The cubic root of 620314664 is about 852.8461290868.

The spelling of 620314664 in words is "six hundred twenty million, three hundred fourteen thousand, six hundred sixty-four".