68738888 has 32 divisors (see below), whose sum is σ = 137748600. Its totient is φ = 32044032.

The previous prime is 68738867. The next prime is 68738899. The reversal of 68738888 is 88883786.

It can be written as a sum of positive squares in 4 ways, for example, as 63712324 + 5026564 = 7982^2 + 2242^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12506 + ... + 17142.

Almost surely, 2^68738888 is an apocalyptic number.

68738888 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68738888 is an abundant number, since it is smaller than the sum of its proper divisors (69009712).

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

68738888 is a wasteful number, since it uses less digits than its factorization.

68738888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769 (or 4765 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 56.

The square root of 68738888 is about 8290.8918699981. The cubic root of 68738888 is about 409.6385630858.

The spelling of 68738888 in words is "sixty-eight million, seven hundred thirty-eight thousand, eight hundred eighty-eight".