68047650 has 144 divisors (see below), whose sum is σ = 203692320. Its totient is φ = 16147200.

The previous prime is 68047649. The next prime is 68047663. The reversal of 68047650 is 5674086.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 291934 + ... + 292166.

It is an arithmetic number, because the mean of its divisors is an integer number (1414530).

Almost surely, 2^68047650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68047650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101846160).

68047650 is an abundant number, since it is smaller than the sum of its proper divisors (135644670).

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

68047650 is a wasteful number, since it uses less digits than its factorization.

68047650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 68047650 is about 8249.0999509037. The cubic root of 68047650 is about 408.2608265910.

The spelling of 68047650 in words is "sixty-eight million, forty-seven thousand, six hundred fifty".