80671217 has 16 divisors (see below), whose sum is σ = 89424000. Its totient is φ = 72167040.

The previous prime is 80671193. The next prime is 80671229. The reversal of 80671217 is 71217608.

It is not a de Polignac number, because 80671217 - 2²² = 76476913 is a prime.

It is a super-2 number, since 2×80671217² = 13015690504522178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80671277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299759 + ... + 300027.

It is an arithmetic number, because the mean of its divisors is an integer number (5589000).

Almost surely, 2^80671217 is an apocalyptic number.

It is an amenable number.

80671217 is a deficient number, since it is larger than the sum of its proper divisors (8752783).

80671217 is a wasteful number, since it uses less digits than its factorization.

80671217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 80671217 is about 8981.7157046970. The cubic root of 80671217 is about 432.0886610006.

The spelling of 80671217 in words is "eighty million, six hundred seventy-one thousand, two hundred seventeen".