68239071 has 16 divisors (see below), whose sum is σ = 107042400. Its totient is φ = 42816384.

The previous prime is 68239069. The next prime is 68239081. The reversal of 68239071 is 17093286.

It is not a de Polignac number, because 68239071 - 2¹ = 68239069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68239081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73876 + ... + 74793.

It is an arithmetic number, because the mean of its divisors is an integer number (6690150).

Almost surely, 2^68239071 is an apocalyptic number.

68239071 is a deficient number, since it is larger than the sum of its proper divisors (38803329).

68239071 is a wasteful number, since it uses less digits than its factorization.

68239071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148695 (or 148689 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 68239071 is about 8260.6943412766. The cubic root of 68239071 is about 408.6432866783.

The spelling of 68239071 in words is "sixty-eight million, two hundred thirty-nine thousand, seventy-one".