620727812 has 6 divisors (see below), whose sum is σ = 1086273678. Its totient is φ = 310363904.

The previous prime is 620727781. The next prime is 620727847. The reversal of 620727812 is 218727026.

620727812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 594676996 + 26050816 = 24386^2 + 5104^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77590973 + ... + 77590980.

It is an arithmetic number, because the mean of its divisors is an integer number (181045613).

Almost surely, 2^620727812 is an apocalyptic number.

It is an amenable number.

620727812 is a deficient number, since it is larger than the sum of its proper divisors (465545866).

620727812 is a wasteful number, since it uses less digits than its factorization.

620727812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155181957 (or 155181955 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 620727812 is about 24914.4097261003. The cubic root of 620727812 is about 853.0354273555.

The spelling of 620727812 in words is "six hundred twenty million, seven hundred twenty-seven thousand, eight hundred twelve".