80867971 has 6 divisors (see below), whose sum is σ = 85348572. Its totient is φ = 76611420.

The previous prime is 80867959. The next prime is 80867989. The reversal of 80867971 is 17976808.

It is not a de Polignac number, because 80867971 - 2⁵ = 80867939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80867911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111645 + ... + 112366.

It is an arithmetic number, because the mean of its divisors is an integer number (14224762).

Almost surely, 2^80867971 is an apocalyptic number.

80867971 is a deficient number, since it is larger than the sum of its proper divisors (4480601).

80867971 is a wasteful number, since it uses less digits than its factorization.

80867971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224049 (or 224030 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 80867971 is about 8992.6620641499. The cubic root of 80867971 is about 432.4396583485.

The spelling of 80867971 in words is "eighty million, eight hundred sixty-seven thousand, nine hundred seventy-one".