68286833 has 4 divisors (see below), whose sum is σ = 68408688. Its totient is φ = 68164980.

The previous prime is 68286797. The next prime is 68286847. The reversal of 68286833 is 33868286.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33868286 = 2 ⋅16934143.

It is a cyclic number.

It is not a de Polignac number, because 68286833 - 2¹⁰ = 68285809 is a prime.

It is a super-2 number, since 2×68286833² = 9326183122339778, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68286233) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 60083 + ... + 61208.

It is an arithmetic number, because the mean of its divisors is an integer number (17102172).

Almost surely, 2^68286833 is an apocalyptic number.

It is an amenable number.

68286833 is a deficient number, since it is larger than the sum of its proper divisors (121855).

68286833 is a wasteful number, since it uses less digits than its factorization.

68286833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121854.

The product of its digits is 331776, while the sum is 44.

The square root of 68286833 is about 8263.5847548143. The cubic root of 68286833 is about 408.7386038651.

The spelling of 68286833 in words is "sixty-eight million, two hundred eighty-six thousand, eight hundred thirty-three".