68914321 has 4 divisors (see below), whose sum is σ = 78759232. Its totient is φ = 59069412.

The previous prime is 68914291. The next prime is 68914327. The reversal of 68914321 is 12341986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68914321 - 2⁷ = 68914193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68914327) 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 3 ways as a sum of consecutive naturals, for example, 4922445 + ... + 4922458.

It is an arithmetic number, because the mean of its divisors is an integer number (19689808).

Almost surely, 2^68914321 is an apocalyptic number.

It is an amenable number.

68914321 is a deficient number, since it is larger than the sum of its proper divisors (9844911).

68914321 is an equidigital number, since it uses as much as digits as its factorization.

68914321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9844910.

The product of its digits is 10368, while the sum is 34.

The square root of 68914321 is about 8301.4649911928. The cubic root of 68914321 is about 409.9867554714.

The spelling of 68914321 in words is "sixty-eight million, nine hundred fourteen thousand, three hundred twenty-one".