68888071 has 6 divisors (see below), whose sum is σ = 80135160. Its totient is φ = 59046876.

The previous prime is 68888011. The next prime is 68888087. The reversal of 68888071 is 17088886.

It is not a de Polignac number, because 68888071 - 2⁷ = 68887943 is a prime.

It is a super-2 number, since 2×68888071² = 9491132652202082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68888011) 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 5 ways as a sum of consecutive naturals, for example, 702891 + ... + 702988.

It is an arithmetic number, because the mean of its divisors is an integer number (13355860).

Almost surely, 2^68888071 is an apocalyptic number.

68888071 is a deficient number, since it is larger than the sum of its proper divisors (11247089).

68888071 is a wasteful number, since it uses less digits than its factorization.

68888071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405893 (or 1405886 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 46.

The square root of 68888071 is about 8299.8837943672. The cubic root of 68888071 is about 409.9346931476.

The spelling of 68888071 in words is "sixty-eight million, eight hundred eighty-eight thousand, seventy-one".