71868382 has 4 divisors (see below), whose sum is σ = 107802576. Its totient is φ = 35934190.

The previous prime is 71868373. The next prime is 71868389. The reversal of 71868382 is 28386817.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71868389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17967094 + ... + 17967097.

It is an arithmetic number, because the mean of its divisors is an integer number (26950644).

Almost surely, 2^71868382 is an apocalyptic number.

71868382 is a deficient number, since it is larger than the sum of its proper divisors (35934194).

71868382 is a wasteful number, since it uses less digits than its factorization.

71868382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35934193.

The product of its digits is 129024, while the sum is 43.

The square root of 71868382 is about 8477.5221615753. The cubic root of 71868382 is about 415.7631132531.

The spelling of 71868382 in words is "seventy-one million, eight hundred sixty-eight thousand, three hundred eighty-two".