680920500 has 96 divisors (see below), whose sum is σ = 2135427840. Its totient is φ = 167606400.

The previous prime is 680920477. The next prime is 680920517. The reversal of 680920500 is 5029086.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2041 + ... + 36959.

It is an arithmetic number, because the mean of its divisors is an integer number (22244040).

Almost surely, 2^680920500 is an apocalyptic number.

680920500 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 680920500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1067713920).

680920500 is an abundant number, since it is smaller than the sum of its proper divisors (1454507340).

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

680920500 is a wasteful number, since it uses less digits than its factorization.

680920500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34954 (or 34942 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 680920500 is about 26094.4534336322. The cubic root of 680920500 is about 879.7625478482.

Adding to 680920500 its reverse (5029086), we get a palindrome (685949586).

The spelling of 680920500 in words is "six hundred eighty million, nine hundred twenty thousand, five hundred".