620948650 has 24 divisors (see below), whose sum is σ = 1319960160. Its totient is φ = 212896560.

The previous prime is 620948623. The next prime is 620948651. The reversal of 620948650 is 56849026.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (620948651) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 886720 + ... + 887419.

It is an arithmetic number, because the mean of its divisors is an integer number (54998340).

Almost surely, 2^620948650 is an apocalyptic number.

620948650 is an abundant number, since it is smaller than the sum of its proper divisors (699011510).

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

620948650 is a wasteful number, since it uses less digits than its factorization.

620948650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774158 (or 1774153 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 620948650 is about 24918.8412651953. The cubic root of 620948650 is about 853.1365775956.

The spelling of 620948650 in words is "six hundred twenty million, nine hundred forty-eight thousand, six hundred fifty".