68521208 has 24 divisors (see below), whose sum is σ = 149454000. Its totient is φ = 29366064.

The previous prime is 68521207. The next prime is 68521217. The reversal of 68521208 is 80212586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68521207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87008 + ... + 87791.

It is an arithmetic number, because the mean of its divisors is an integer number (6227250).

Almost surely, 2^68521208 is an apocalyptic number.

It is an amenable number.

68521208 is an abundant number, since it is smaller than the sum of its proper divisors (80932792).

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

68521208 is a wasteful number, since it uses less digits than its factorization.

68521208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174819 (or 174808 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 68521208 is about 8277.7538016058. The cubic root of 68521208 is about 409.2056959565.

The spelling of 68521208 in words is "sixty-eight million, five hundred twenty-one thousand, two hundred eight".