671106500 has 24 divisors (see below), whose sum is σ = 1465697688. Its totient is φ = 268442400.

The previous prime is 671106493. The next prime is 671106509. The reversal of 671106500 is 5601176.

It can be written as a sum of positive squares in 4 ways, for example, as 35259844 + 635846656 = 5938^2 + 25216^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 671106500.

It is not an unprimeable number, because it can be changed into a prime (671106509) 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, 670607 + ... + 671606.

It is an arithmetic number, because the mean of its divisors is an integer number (61070737).

Almost surely, 2^671106500 is an apocalyptic number.

It is an amenable number.

671106500 is an abundant number, since it is smaller than the sum of its proper divisors (794591188).

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

671106500 is a wasteful number, since it uses less digits than its factorization.

671106500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342232 (or 1342220 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 671106500 is about 25905.7233058643. The cubic root of 671106500 is about 875.5154513965.

Adding to 671106500 its reverse (5601176), we get a palindrome (676707676).

The spelling of 671106500 in words is "six hundred seventy-one million, one hundred six thousand, five hundred".