620937620 has 24 divisors (see below), whose sum is σ = 1335774888. Its totient is φ = 242316800.

The previous prime is 620937617. The next prime is 620937623. The reversal of 620937620 is 26739026.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (620937617) and next prime (620937623).

It can be written as a sum of positive squares in 4 ways, for example, as 18627856 + 602309764 = 4316^2 + 24542^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620937623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377801 + ... + 379440.

It is an arithmetic number, because the mean of its divisors is an integer number (55657287).

Almost surely, 2^620937620 is an apocalyptic number.

It is an amenable number.

620937620 is an abundant number, since it is smaller than the sum of its proper divisors (714837268).

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

620937620 is a wasteful number, since it uses less digits than its factorization.

620937620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757291 (or 757289 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 620937620 is about 24918.6199457354. The cubic root of 620937620 is about 853.1315261032.

The spelling of 620937620 in words is "six hundred twenty million, nine hundred thirty-seven thousand, six hundred twenty".