68084136 has 48 divisors (see below), whose sum is σ = 188691360. Its totient is φ = 22165920.

The previous prime is 68084131. The next prime is 68084161. The reversal of 68084136 is 63148086.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 68084136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68084131) 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 11 ways as a sum of consecutive naturals, for example, 7900 + ... + 14091.

It is an arithmetic number, because the mean of its divisors is an integer number (3931070).

Almost surely, 2^68084136 is an apocalyptic number.

It is an amenable number.

68084136 is an abundant number, since it is smaller than the sum of its proper divisors (120607224).

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

68084136 is a wasteful number, since it uses less digits than its factorization.

68084136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22046 (or 22039 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 68084136 is about 8251.3111685356. The cubic root of 68084136 is about 408.3337810722. Note that the first 3 decimals are identical.

The spelling of 68084136 in words is "sixty-eight million, eighty-four thousand, one hundred thirty-six".