68431335 has 16 divisors (see below), whose sum is σ = 125131776. Its totient is φ = 31282848.

The previous prime is 68431267. The next prime is 68431343. The reversal of 68431335 is 53313486.

It is not a de Polignac number, because 68431335 - 2⁸ = 68431079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68431296 and 68431305.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 325759 + ... + 325968.

It is an arithmetic number, because the mean of its divisors is an integer number (7820736).

Almost surely, 2^68431335 is an apocalyptic number.

68431335 is a deficient number, since it is larger than the sum of its proper divisors (56700441).

68431335 is a wasteful number, since it uses less digits than its factorization.

68431335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651742.

The product of its digits is 25920, while the sum is 33.

The square root of 68431335 is about 8272.3234341991. The cubic root of 68431335 is about 409.0267117893.

The spelling of 68431335 in words is "sixty-eight million, four hundred thirty-one thousand, three hundred thirty-five".