71980799 has 8 divisors (see below), whose sum is σ = 80647248. Its totient is φ = 63668160.

The previous prime is 71980763. The next prime is 71980801. The reversal of 71980799 is 99708917.

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

It is a cyclic number.

It is not a de Polignac number, because 71980799 - 2²⁰ = 70932223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71980709) 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, 88022 + ... + 88835.

It is an arithmetic number, because the mean of its divisors is an integer number (10080906).

Almost surely, 2^71980799 is an apocalyptic number.

71980799 is a deficient number, since it is larger than the sum of its proper divisors (8666449).

71980799 is a wasteful number, since it uses less digits than its factorization.

71980799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176905.

The product of its (nonzero) digits is 285768, while the sum is 50.

The square root of 71980799 is about 8484.1498690205. The cubic root of 71980799 is about 415.9797801285.

It can be divided in two parts, 719 and 80799, that added together give a palindrome (81518).

The spelling of 71980799 in words is "seventy-one million, nine hundred eighty thousand, seven hundred ninety-nine".