68391033 has 8 divisors (see below), whose sum is σ = 91230048. Its totient is φ = 45573024.

The previous prime is 68390989. The next prime is 68391047. The reversal of 68391033 is 33019386.

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

It is not a de Polignac number, because 68391033 - 2¹⁶ = 68325497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68390985 and 68391003.

It is not an unprimeable number, because it can be changed into a prime (68391733) 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 7 ways as a sum of consecutive naturals, for example, 5485 + ... + 12917.

It is an arithmetic number, because the mean of its divisors is an integer number (11403756).

Almost surely, 2^68391033 is an apocalyptic number.

It is an amenable number.

68391033 is a deficient number, since it is larger than the sum of its proper divisors (22839015).

68391033 is a wasteful number, since it uses less digits than its factorization.

68391033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10503.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 68391033 is about 8269.8871213578. The cubic root of 68391033 is about 408.9463985247.

The spelling of 68391033 in words is "sixty-eight million, three hundred ninety-one thousand, thirty-three".