68971191 has 8 divisors (see below), whose sum is σ = 92031744. Its totient is φ = 45945720.

The previous prime is 68971153. The next prime is 68971229. The reversal of 68971191 is 19117986.

It is an interprime number because it is at equal distance from previous prime (68971153) and next prime (68971229).

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

It is not a de Polignac number, because 68971191 - 2¹¹ = 68969143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68971151) 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, 3775 + ... + 12336.

It is an arithmetic number, because the mean of its divisors is an integer number (11503968).

Almost surely, 2^68971191 is an apocalyptic number.

68971191 is a deficient number, since it is larger than the sum of its proper divisors (23060553).

68971191 is a wasteful number, since it uses less digits than its factorization.

68971191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17541.

The product of its digits is 27216, while the sum is 42.

The square root of 68971191 is about 8304.8895838536. The cubic root of 68971191 is about 410.0995019259.

The spelling of 68971191 in words is "sixty-eight million, nine hundred seventy-one thousand, one hundred ninety-one".