68988585 has 16 divisors (see below), whose sum is σ = 110578176. Its totient is φ = 36728448.

The previous prime is 68988583. The next prime is 68988589. The reversal of 68988585 is 58588986.

It is not a de Polignac number, because 68988585 - 2¹ = 68988583 is a prime.

Its product of digits (5529600) is a multiple of the sum of its prime divisors (8192).

It is not an unprimeable number, because it can be changed into a prime (68988583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5317 + ... + 12893.

It is an arithmetic number, because the mean of its divisors is an integer number (6911136).

Almost surely, 2^68988585 is an apocalyptic number.

It is an amenable number.

68988585 is a deficient number, since it is larger than the sum of its proper divisors (41589591).

68988585 is a wasteful number, since it uses less digits than its factorization.

68988585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8192.

The product of its digits is 5529600, while the sum is 57.

The square root of 68988585 is about 8305.9367322416. The cubic root of 68988585 is about 410.1339736673.

The spelling of 68988585 in words is "sixty-eight million, nine hundred eighty-eight thousand, five hundred eighty-five".