71327999 has 8 divisors (see below), whose sum is σ = 73936128. Its totient is φ = 68765400.

The previous prime is 71327981. The next prime is 71328007. The reversal of 71327999 is 99972317.

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 71327999 - 2⁸ = 71327743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71327909) 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, 8177 + ... + 14474.

It is an arithmetic number, because the mean of its divisors is an integer number (9242016).

Almost surely, 2^71327999 is an apocalyptic number.

71327999 is a deficient number, since it is larger than the sum of its proper divisors (2608129).

71327999 is a wasteful number, since it uses less digits than its factorization.

71327999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22765.

The product of its digits is 214326, while the sum is 47.

The square root of 71327999 is about 8445.5905062938. The cubic root of 71327999 is about 414.7184406525.

The spelling of 71327999 in words is "seventy-one million, three hundred twenty-seven thousand, nine hundred ninety-nine".