71988059 has 8 divisors (see below), whose sum is σ = 84573552. Its totient is φ = 60409440.

The previous prime is 71988043. The next prime is 71988073. The reversal of 71988059 is 95088917.

It is a happy number.

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

It is not a de Polignac number, because 71988059 - 2⁴ = 71988043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71988019) 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, 251564 + ... + 251849.

It is an arithmetic number, because the mean of its divisors is an integer number (10571694).

Almost surely, 2^71988059 is an apocalyptic number.

71988059 is a deficient number, since it is larger than the sum of its proper divisors (12585493).

71988059 is a wasteful number, since it uses less digits than its factorization.

71988059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503437.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 71988059 is about 8484.5777148895. The cubic root of 71988059 is about 415.9937649306.

The spelling of 71988059 in words is "seventy-one million, nine hundred eighty-eight thousand, fifty-nine".