68888634 has 32 divisors (see below), whose sum is σ = 148414464. Its totient is φ = 21254640.

The previous prime is 68888627. The next prime is 68888639. The reversal of 68888634 is 43688886.

It is not an unprimeable number, because it can be changed into a prime (68888639) 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 15 ways as a sum of consecutive naturals, for example, 3774 + ... + 12329.

It is an arithmetic number, because the mean of its divisors is an integer number (4637952).

Almost surely, 2^68888634 is an apocalyptic number.

68888634 is an abundant number, since it is smaller than the sum of its proper divisors (79525830).

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

68888634 is a wasteful number, since it uses less digits than its factorization.

68888634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16162.

The product of its digits is 1769472, while the sum is 51.

The square root of 68888634 is about 8299.9177104354. The cubic root of 68888634 is about 409.9358098993.

The spelling of 68888634 in words is "sixty-eight million, eight hundred eighty-eight thousand, six hundred thirty-four".