68968999 has 8 divisors (see below), whose sum is σ = 77272848. Its totient is φ = 61004160.

The previous prime is 68968997. The next prime is 68969003. The reversal of 68968999 is 99986986.

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

It is a cyclic number.

It is not a de Polignac number, because 68968999 - 2¹ = 68968997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68968999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68968997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84322 + ... + 85135.

It is an arithmetic number, because the mean of its divisors is an integer number (9659106).

Almost surely, 2^68968999 is an apocalyptic number.

68968999 is a deficient number, since it is larger than the sum of its proper divisors (8303849).

68968999 is a wasteful number, since it uses less digits than its factorization.

68968999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169505.

The product of its digits is 15116544, while the sum is 64.

The square root of 68968999 is about 8304.7576123569. The cubic root of 68968999 is about 410.0951573698.

The spelling of 68968999 in words is "sixty-eight million, nine hundred sixty-eight thousand, nine hundred ninety-nine".