71350680 has 64 divisors (see below), whose sum is σ = 214640640. Its totient is φ = 18974592.

The previous prime is 71350673. The next prime is 71350693. The reversal of 71350680 is 8605317.

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 15 ways as a sum of consecutive naturals, for example, 65097 + ... + 66183.

It is an arithmetic number, because the mean of its divisors is an integer number (3353760).

Almost surely, 2^71350680 is an apocalyptic number.

It is an amenable number.

71350680 is an abundant number, since it is smaller than the sum of its proper divisors (143289960).

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

71350680 is a wasteful number, since it uses less digits than its factorization.

71350680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 71350680 is about 8446.9331712758. The cubic root of 71350680 is about 414.7623936221.

Adding to 71350680 its reverse (8605317), we get a palindrome (79955997).

The spelling of 71350680 in words is "seventy-one million, three hundred fifty thousand, six hundred eighty".