71988382 has 16 divisors (see below), whose sum is σ = 111909600. Its totient is φ = 34689760.

The previous prime is 71988373. The next prime is 71988383. The reversal of 71988382 is 28388917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71988383) 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, 53919 + ... + 55237.

It is an arithmetic number, because the mean of its divisors is an integer number (6994350).

Almost surely, 2^71988382 is an apocalyptic number.

71988382 is a deficient number, since it is larger than the sum of its proper divisors (39921218).

71988382 is a wasteful number, since it uses less digits than its factorization.

71988382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291.

The product of its digits is 193536, while the sum is 46.

The square root of 71988382 is about 8484.5967494042. The cubic root of 71988382 is about 415.9943870976.

The spelling of 71988382 in words is "seventy-one million, nine hundred eighty-eight thousand, three hundred eighty-two".