68506833 has 4 divisors (see below), whose sum is σ = 91342448. Its totient is φ = 45671220.

The previous prime is 68506831. The next prime is 68506853. The reversal of 68506833 is 33860586.

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 not a de Polignac number, because 68506833 - 2¹ = 68506831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68506791 and 68506800.

It is not an unprimeable number, because it can be changed into a prime (68506831) 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, 11417803 + ... + 11417808.

It is an arithmetic number, because the mean of its divisors is an integer number (22835612).

Almost surely, 2^68506833 is an apocalyptic number.

It is an amenable number.

68506833 is a deficient number, since it is larger than the sum of its proper divisors (22835615).

68506833 is a wasteful number, since it uses less digits than its factorization.

68506833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22835614.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 68506833 is about 8276.8854649560. The cubic root of 68506833 is about 409.1770783287.

The spelling of 68506833 in words is "sixty-eight million, five hundred six thousand, eight hundred thirty-three".