68218606 has 4 divisors (see below), whose sum is σ = 102327912. Its totient is φ = 34109302.

The previous prime is 68218583. The next prime is 68218649. The reversal of 68218606 is 60681286.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17054650 + ... + 17054653.

It is an arithmetic number, because the mean of its divisors is an integer number (25581978).

Almost surely, 2^68218606 is an apocalyptic number.

68218606 is a deficient number, since it is larger than the sum of its proper divisors (34109306).

68218606 is a wasteful number, since it uses less digits than its factorization.

68218606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34109305.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 68218606 is about 8259.4555510639. The cubic root of 68218606 is about 408.6024316819.

The spelling of 68218606 in words is "sixty-eight million, two hundred eighteen thousand, six hundred six".