620720716 has 48 divisors (see below), whose sum is σ = 1357800192. Its totient is φ = 241214400.

The previous prime is 620720701. The next prime is 620720717. The reversal of 620720716 is 617027026.

It is not an unprimeable number, because it can be changed into a prime (620720717) 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, 127275 + ... + 132061.

It is an arithmetic number, because the mean of its divisors is an integer number (28287504).

Almost surely, 2^620720716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620720716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678900096).

620720716 is an abundant number, since it is smaller than the sum of its proper divisors (737079476).

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

620720716 is a wasteful number, since it uses less digits than its factorization.

620720716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5230 (or 5228 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 620720716 is about 24914.2673181452. The cubic root of 620720716 is about 853.0321767829.

The spelling of 620720716 in words is "six hundred twenty million, seven hundred twenty thousand, seven hundred sixteen".