68884538 has 16 divisors (see below), whose sum is σ = 111297120. Its totient is φ = 31869936.

The previous prime is 68884531. The next prime is 68884547. The reversal of 68884538 is 83548886.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68884531) 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 7 ways as a sum of consecutive naturals, for example, 19445 + ... + 22712.

It is an arithmetic number, because the mean of its divisors is an integer number (6956070).

Almost surely, 2^68884538 is an apocalyptic number.

68884538 is a deficient number, since it is larger than the sum of its proper divisors (42412582).

68884538 is a wasteful number, since it uses less digits than its factorization.

68884538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42221.

The product of its digits is 1474560, while the sum is 50.

The square root of 68884538 is about 8299.6709573332. The cubic root of 68884538 is about 409.9276850449.

The spelling of 68884538 in words is "sixty-eight million, eight hundred eighty-four thousand, five hundred thirty-eight".