68649226 has 4 divisors (see below), whose sum is σ = 102973842. Its totient is φ = 34324612.

The previous prime is 68649197. The next prime is 68649239. The reversal of 68649226 is 62294686.

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

It can be written as a sum of positive squares in only one way, i.e., 35988001 + 32661225 = 5999^2 + 5715^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17162305 + ... + 17162308.

Almost surely, 2^68649226 is an apocalyptic number.

68649226 is a deficient number, since it is larger than the sum of its proper divisors (34324616).

68649226 is a wasteful number, since it uses less digits than its factorization.

68649226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34324615.

The product of its digits is 248832, while the sum is 43.

The square root of 68649226 is about 8285.4828465214. The cubic root of 68649226 is about 409.4603767389.

The spelling of 68649226 in words is "sixty-eight million, six hundred forty-nine thousand, two hundred twenty-six".