620986500 has 288 divisors, whose sum is σ = 2146435200. Its totient is φ = 156297600.

The previous prime is 620986493. The next prime is 620986511. The reversal of 620986500 is 5689026.

620986500 is a `hidden beast` number, since 62 + 0 + 98 + 6 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2308366 + ... + 2308634.

It is an arithmetic number, because the mean of its divisors is an integer number (7452900).

Almost surely, 2^620986500 is an apocalyptic number.

620986500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620986500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1073217600).

620986500 is an abundant number, since it is smaller than the sum of its proper divisors (1525448700).

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

620986500 is a wasteful number, since it uses less digits than its factorization.

620986500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 620986500 is about 24919.6007191127. The cubic root of 620986500 is about 853.1539115911.

The spelling of 620986500 in words is "six hundred twenty million, nine hundred eighty-six thousand, five hundred".