620936900 has 36 divisors (see below), whose sum is σ = 1426697748. Its totient is φ = 233763840.

The previous prime is 620936879. The next prime is 620936903. The reversal of 620936900 is 9639026.

It can be written as a sum of positive squares in 6 ways, for example, as 78605956 + 542330944 = 8866^2 + 23288^2 .

It is a super-2 number, since 2×620936900² = 771125267563220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (620936903) 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, 180929 + ... + 184328.

It is an arithmetic number, because the mean of its divisors is an integer number (39630493).

Almost surely, 2^620936900 is an apocalyptic number.

It is an amenable number.

620936900 is an abundant number, since it is smaller than the sum of its proper divisors (805760848).

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

620936900 is a wasteful number, since it uses less digits than its factorization.

620936900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365288 (or 365281 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 620936900 is about 24918.6054987032. The cubic root of 620936900 is about 853.1311963573.

The spelling of 620936900 in words is "six hundred twenty million, nine hundred thirty-six thousand, nine hundred".