680700810 has 32 divisors (see below), whose sum is σ = 1641024000. Its totient is φ = 180704448.

The previous prime is 680700809. The next prime is 680700833. The reversal of 680700810 is 18007086.

It is a super-2 number, since 2×680700810² = 926707185469312200, which contains 22 as substring.

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

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 44185 + ... + 57564.

It is an arithmetic number, because the mean of its divisors is an integer number (51282000).

Almost surely, 2^680700810 is an apocalyptic number.

680700810 is an abundant number, since it is smaller than the sum of its proper divisors (960323190).

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

680700810 is a wasteful number, since it uses less digits than its factorization.

680700810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101982.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 680700810 is about 26090.2435787786. The cubic root of 680700810 is about 879.6679230847.

Adding to 680700810 its reverse (18007086), we get a palindrome (698707896).

The spelling of 680700810 in words is "six hundred eighty million, seven hundred thousand, eight hundred ten".