68622233 has 4 divisors (see below), whose sum is σ = 70295988. Its totient is φ = 66948480.

The previous prime is 68622221. The next prime is 68622259. The reversal of 68622233 is 33222686.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5053504 + 63568729 = 2248^2 + 7973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68622233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68622233.

It is not an unprimeable number, because it can be changed into a prime (68612233) 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 in 3 ways as a sum of consecutive naturals, for example, 836816 + ... + 836897.

It is an arithmetic number, because the mean of its divisors is an integer number (17573997).

Almost surely, 2^68622233 is an apocalyptic number.

It is an amenable number.

68622233 is a deficient number, since it is larger than the sum of its proper divisors (1673755).

68622233 is a wasteful number, since it uses less digits than its factorization.

68622233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673754.

The product of its digits is 20736, while the sum is 32.

The square root of 68622233 is about 8283.8537529341. The cubic root of 68622233 is about 409.4067028495.

The spelling of 68622233 in words is "sixty-eight million, six hundred twenty-two thousand, two hundred thirty-three".