68726222 has 4 divisors (see below), whose sum is σ = 103089336. Its totient is φ = 34363110.

The previous prime is 68726219. The next prime is 68726227. The reversal of 68726222 is 22262786.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68726227) 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 as a sum of consecutive naturals, namely, 17181554 + ... + 17181557.

It is an arithmetic number, because the mean of its divisors is an integer number (25772334).

Almost surely, 2^68726222 is an apocalyptic number.

68726222 is a deficient number, since it is larger than the sum of its proper divisors (34363114).

68726222 is a wasteful number, since it uses less digits than its factorization.

68726222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34363113.

The product of its digits is 32256, while the sum is 35.

The square root of 68726222 is about 8290.1279845368. The cubic root of 68726222 is about 409.6134011970.

The spelling of 68726222 in words is "sixty-eight million, seven hundred twenty-six thousand, two hundred twenty-two".