71968347 has 12 divisors (see below), whose sum is σ = 113404824. Its totient is φ = 43617120.

The previous prime is 71968339. The next prime is 71968363. The reversal of 71968347 is 74386917.

It is not a de Polignac number, because 71968347 - 2³ = 71968339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71960347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363378 + ... + 363575.

It is an arithmetic number, because the mean of its divisors is an integer number (9450402).

Almost surely, 2^71968347 is an apocalyptic number.

71968347 is a deficient number, since it is larger than the sum of its proper divisors (41436477).

71968347 is a wasteful number, since it uses less digits than its factorization.

71968347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726970 (or 726967 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 71968347 is about 8483.4159982875. The cubic root of 71968347 is about 415.9557918844.

The spelling of 71968347 in words is "seventy-one million, nine hundred sixty-eight thousand, three hundred forty-seven".