71004660 has 24 divisors (see below), whose sum is σ = 198813216. Its totient is φ = 18934560.

The previous prime is 71004643. The next prime is 71004667. The reversal of 71004660 is 6640017.

It is a self number, because there is not a number n which added to its sum of digits gives 71004660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71004667) 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, 591646 + ... + 591765.

It is an arithmetic number, because the mean of its divisors is an integer number (8283884).

Almost surely, 2^71004660 is an apocalyptic number.

It is an amenable number.

71004660 is an abundant number, since it is smaller than the sum of its proper divisors (127808556).

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

71004660 is a wasteful number, since it uses less digits than its factorization.

71004660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183423 (or 1183421 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 71004660 is about 8426.4262887656. The cubic root of 71004660 is about 414.0908339980.

Adding to 71004660 its reverse (6640017), we get a palindrome (77644677).

The spelling of 71004660 in words is "seventy-one million, four thousand, six hundred sixty".