68355826 has 16 divisors (see below), whose sum is σ = 127834560. Its totient is φ = 26632080.

The previous prime is 68355823. The next prime is 68355869. The reversal of 68355826 is 62855386.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68355823) 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, 221781 + ... + 222088.

It is an arithmetic number, because the mean of its divisors is an integer number (7989660).

Almost surely, 2^68355826 is an apocalyptic number.

68355826 is a deficient number, since it is larger than the sum of its proper divisors (59478734).

68355826 is a wasteful number, since it uses less digits than its factorization.

68355826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443889.

The product of its digits is 345600, while the sum is 43.

The square root of 68355826 is about 8267.7582209448. The cubic root of 68355826 is about 408.8762126805.

The spelling of 68355826 in words is "sixty-eight million, three hundred fifty-five thousand, eight hundred twenty-six".