68326439 has 4 divisors (see below), whose sum is σ = 68680656. Its totient is φ = 67972224.

The previous prime is 68326411. The next prime is 68326463. The reversal of 68326439 is 93462386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68326439 - 2¹² = 68322343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68326396 and 68326405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68326409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176819 + ... + 177204.

It is an arithmetic number, because the mean of its divisors is an integer number (17170164).

Almost surely, 2^68326439 is an apocalyptic number.

68326439 is a deficient number, since it is larger than the sum of its proper divisors (354217).

68326439 is a wasteful number, since it uses less digits than its factorization.

68326439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354216.

The product of its digits is 186624, while the sum is 41.

The square root of 68326439 is about 8265.9808250443. The cubic root of 68326439 is about 408.8176106648.

The spelling of 68326439 in words is "sixty-eight million, three hundred twenty-six thousand, four hundred thirty-nine".