620633216 has 48 divisors (see below), whose sum is σ = 1438296390. Its totient is φ = 265982976.

The previous prime is 620633191. The next prime is 620633231. The reversal of 620633216 is 612336026.

It can be written as a sum of positive squares in only one way, i.e., 524593216 + 96040000 = 22904^2 + 9800^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43205 + ... + 55748.

Almost surely, 2^620633216 is an apocalyptic number.

It is an amenable number.

620633216 is an abundant number, since it is smaller than the sum of its proper divisors (817663174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620633216 is an equidigital number, since it uses as much as digits as its factorization.

620633216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98981 (or 98962 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 620633216 is about 24912.5112343176. The cubic root of 620633216 is about 852.9920922913.

The spelling of 620633216 in words is "six hundred twenty million, six hundred thirty-three thousand, two hundred sixteen".