80327891 has 8 divisors (see below), whose sum is σ = 95794944. Its totient is φ = 65858760.

The previous prime is 80327869. The next prime is 80327893. The reversal of 80327891 is 19872308.

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 80327891 - 2¹⁰ = 80326867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80327893) 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, 249305 + ... + 249626.

It is an arithmetic number, because the mean of its divisors is an integer number (11974368).

Almost surely, 2^80327891 is an apocalyptic number.

80327891 is a deficient number, since it is larger than the sum of its proper divisors (15467053).

80327891 is a wasteful number, since it uses less digits than its factorization.

80327891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498961.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 80327891 is about 8962.5828308585. The cubic root of 80327891 is about 431.4748186873.

It can be divided in two parts, 80327 and 891, that added together give a palindrome (81218).

The spelling of 80327891 in words is "eighty million, three hundred twenty-seven thousand, eight hundred ninety-one".