68039871 has 8 divisors (see below), whose sum is σ = 91552560. Its totient is φ = 44943552.

The previous prime is 68039833. The next prime is 68039903. The reversal of 68039871 is 17893086.

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

It is not a de Polignac number, because 68039871 - 2⁷ = 68039743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68032871) 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, 103710 + ... + 104363.

It is an arithmetic number, because the mean of its divisors is an integer number (11444070).

Almost surely, 2^68039871 is an apocalyptic number.

68039871 is a deficient number, since it is larger than the sum of its proper divisors (23512689).

68039871 is a wasteful number, since it uses less digits than its factorization.

68039871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208185.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 68039871 is about 8248.6284314424. The cubic root of 68039871 is about 408.2452689535.

The spelling of 68039871 in words is "sixty-eight million, thirty-nine thousand, eight hundred seventy-one".