71680652 has 6 divisors (see below), whose sum is σ = 125441148. Its totient is φ = 35840324.

The previous prime is 71680643. The next prime is 71680657. The reversal of 71680652 is 25608617.

It is a super-2 number, since 2×71680652² = 10276231742290208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71680657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8960078 + ... + 8960085.

It is an arithmetic number, because the mean of its divisors is an integer number (20906858).

Almost surely, 2^71680652 is an apocalyptic number.

It is an amenable number.

71680652 is a deficient number, since it is larger than the sum of its proper divisors (53760496).

71680652 is a wasteful number, since it uses less digits than its factorization.

71680652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17920167 (or 17920165 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 71680652 is about 8466.4427004498. The cubic root of 71680652 is about 415.4007876332.

The spelling of 71680652 in words is "seventy-one million, six hundred eighty thousand, six hundred fifty-two".