68222239 has 8 divisors (see below), whose sum is σ = 72077760. Its totient is φ = 64466976.

The previous prime is 68222233. The next prime is 68222249. The reversal of 68222239 is 93222286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68222239 - 2¹⁹ = 67697951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68222233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23664 + ... + 26389.

It is an arithmetic number, because the mean of its divisors is an integer number (9009720).

Almost surely, 2^68222239 is an apocalyptic number.

68222239 is a deficient number, since it is larger than the sum of its proper divisors (3855521).

68222239 is a wasteful number, since it uses less digits than its factorization.

68222239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50129.

The product of its digits is 20736, while the sum is 34.

The square root of 68222239 is about 8259.6754778865. The cubic root of 68222239 is about 408.6096849635.

The spelling of 68222239 in words is "sixty-eight million, two hundred twenty-two thousand, two hundred thirty-nine".