68664806 has 8 divisors (see below), whose sum is σ = 117711120. Its totient is φ = 29427768.

The previous prime is 68664793. The next prime is 68664823. The reversal of 68664806 is 60846686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2452301 + ... + 2452328.

It is an arithmetic number, because the mean of its divisors is an integer number (14713890).

Almost surely, 2^68664806 is an apocalyptic number.

68664806 is a deficient number, since it is larger than the sum of its proper divisors (49046314).

68664806 is a wasteful number, since it uses less digits than its factorization.

68664806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904638.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 68664806 is about 8286.4229918584. The cubic root of 68664806 is about 409.4913501890.

The spelling of 68664806 in words is "sixty-eight million, six hundred sixty-four thousand, eight hundred six".