68784826 has 32 divisors (see below), whose sum is σ = 120038400. Its totient is φ = 29231280.

The previous prime is 68784799. The next prime is 68784827. The reversal of 68784826 is 62848786.

It is a self number, because there is not a number n which added to its sum of digits gives 68784826.

It is not an unprimeable number, because it can be changed into a prime (68784827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31981 + ... + 34063.

It is an arithmetic number, because the mean of its divisors is an integer number (3751200).

Almost surely, 2^68784826 is an apocalyptic number.

68784826 is a deficient number, since it is larger than the sum of its proper divisors (51253574).

68784826 is a wasteful number, since it uses less digits than its factorization.

68784826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194.

The product of its digits is 1032192, while the sum is 49.

The square root of 68784826 is about 8293.6617968181. The cubic root of 68784826 is about 409.7297961874.

The spelling of 68784826 in words is "sixty-eight million, seven hundred eighty-four thousand, eight hundred twenty-six".