80819271 has 24 divisors (see below), whose sum is σ = 126702576. Its totient is φ = 49345920.

The previous prime is 80819267. The next prime is 80819279. The reversal of 80819271 is 17291808.

It is not a de Polignac number, because 80819271 - 2² = 80819267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80819279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12691 + ... + 17963.

It is an arithmetic number, because the mean of its divisors is an integer number (5279274).

Almost surely, 2^80819271 is an apocalyptic number.

80819271 is a deficient number, since it is larger than the sum of its proper divisors (45883305).

80819271 is a wasteful number, since it uses less digits than its factorization.

80819271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423 (or 5420 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 80819271 is about 8989.9538930964. The cubic root of 80819271 is about 432.3528335318.

The spelling of 80819271 in words is "eighty million, eight hundred nineteen thousand, two hundred seventy-one".