68648329 has 8 divisors (see below), whose sum is σ = 73919520. Its totient is φ = 63514176.

The previous prime is 68648317. The next prime is 68648351. The reversal of 68648329 is 92384686.

It is a happy number.

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

It is not a de Polignac number, because 68648329 - 2⁷ = 68648201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68648369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33219 + ... + 35224.

It is an arithmetic number, because the mean of its divisors is an integer number (9239940).

Almost surely, 2^68648329 is an apocalyptic number.

It is an amenable number.

68648329 is a deficient number, since it is larger than the sum of its proper divisors (5271191).

68648329 is a wasteful number, since it uses less digits than its factorization.

68648329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68519.

The product of its digits is 497664, while the sum is 46.

The square root of 68648329 is about 8285.4287155222. The cubic root of 68648329 is about 409.4585933366.

The spelling of 68648329 in words is "sixty-eight million, six hundred forty-eight thousand, three hundred twenty-nine".