68711871 has 8 divisors (see below), whose sum is σ = 91779120. Its totient is φ = 45726272.

The previous prime is 68711861. The next prime is 68711887. The reversal of 68711871 is 17811786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68711871 - 2⁷ = 68711743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68711821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18420 + ... + 21833.

It is an arithmetic number, because the mean of its divisors is an integer number (11472390).

Almost surely, 2^68711871 is an apocalyptic number.

68711871 is a deficient number, since it is larger than the sum of its proper divisors (23067249).

68711871 is a wasteful number, since it uses less digits than its factorization.

68711871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40825.

The product of its digits is 18816, while the sum is 39.

The square root of 68711871 is about 8289.2623917934. The cubic root of 68711871 is about 409.5848882027.

The spelling of 68711871 in words is "sixty-eight million, seven hundred eleven thousand, eight hundred seventy-one".