68222397 has 8 divisors (see below), whose sum is σ = 91037056. Its totient is φ = 45444672.

The previous prime is 68222321. The next prime is 68222417. The reversal of 68222397 is 79322286.

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

It is not a de Polignac number, because 68222397 - 2⁷ = 68222269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68222317) 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, 4588 + ... + 12549.

It is an arithmetic number, because the mean of its divisors is an integer number (11379632).

Almost surely, 2^68222397 is an apocalyptic number.

It is an amenable number.

68222397 is a deficient number, since it is larger than the sum of its proper divisors (22814659).

68222397 is a wasteful number, since it uses less digits than its factorization.

68222397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18467.

The product of its digits is 72576, while the sum is 39.

The square root of 68222397 is about 8259.6850424214. The cubic root of 68222397 is about 408.6100004045.

The spelling of 68222397 in words is "sixty-eight million, two hundred twenty-two thousand, three hundred ninety-seven".