68667329 has 8 divisors (see below), whose sum is σ = 70433280. Its totient is φ = 66914176.

The previous prime is 68667323. The next prime is 68667341. The reversal of 68667329 is 92376686.

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 68667329 - 2⁸ = 68667073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68667323) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8177 + ... + 14289.

It is an arithmetic number, because the mean of its divisors is an integer number (8804160).

Almost surely, 2^68667329 is an apocalyptic number.

It is an amenable number.

68667329 is a deficient number, since it is larger than the sum of its proper divisors (1765951).

68667329 is a wasteful number, since it uses less digits than its factorization.

68667329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399.

The product of its digits is 653184, while the sum is 47.

The square root of 68667329 is about 8286.5752274387. The cubic root of 68667329 is about 409.4963655386.

The spelling of 68667329 in words is "sixty-eight million, six hundred sixty-seven thousand, three hundred twenty-nine".