71968351 has 8 divisors (see below), whose sum is σ = 88576544. Its totient is φ = 56941920.

The previous prime is 71968339. The next prime is 71968363. The reversal of 71968351 is 15386917.

It is an interprime number because it is at equal distance from previous prime (71968339) and next prime (71968363).

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

It is not a de Polignac number, because 71968351 - 2¹¹ = 71966303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71968301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395340 + ... + 395521.

It is an arithmetic number, because the mean of its divisors is an integer number (11072068).

Almost surely, 2^71968351 is an apocalyptic number.

71968351 is a deficient number, since it is larger than the sum of its proper divisors (16608193).

71968351 is a wasteful number, since it uses less digits than its factorization.

71968351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790881.

The product of its digits is 45360, while the sum is 40.

The square root of 71968351 is about 8483.4162340416. The cubic root of 71968351 is about 415.9557995907.

The spelling of 71968351 in words is "seventy-one million, nine hundred sixty-eight thousand, three hundred fifty-one".