68084664 has 16 divisors (see below), whose sum is σ = 170211720. Its totient is φ = 22694880.

The previous prime is 68084633. The next prime is 68084683. The reversal of 68084664 is 46648086.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418407 + ... + 1418454.

Almost surely, 2^68084664 is an apocalyptic number.

It is an amenable number.

68084664 is an abundant number, since it is smaller than the sum of its proper divisors (102127056).

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

68084664 is a wasteful number, since it uses less digits than its factorization.

68084664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836870 (or 2836866 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 68084664 is about 8251.3431633886. The cubic root of 68084664 is about 408.3348366274.

The spelling of 68084664 in words is "sixty-eight million, eighty-four thousand, six hundred sixty-four".