68617422 has 64 divisors (see below), whose sum is σ = 161568000. Its totient is φ = 21549024.

The previous prime is 68617421. The next prime is 68617427. The reversal of 68617422 is 22471686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68617421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66829 + ... + 67847.

It is an arithmetic number, because the mean of its divisors is an integer number (2524500).

Almost surely, 2^68617422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68617422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80784000).

68617422 is an abundant number, since it is smaller than the sum of its proper divisors (92950578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68617422 is a wasteful number, since it uses less digits than its factorization.

68617422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1096 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 68617422 is about 8283.5633636739. The cubic root of 68617422 is about 409.3971349995.

The spelling of 68617422 in words is "sixty-eight million, six hundred seventeen thousand, four hundred twenty-two".