80942217 has 8 divisors (see below), whose sum is σ = 108218496. Its totient is φ = 53813712.

The previous prime is 80942179. The next prime is 80942237. The reversal of 80942217 is 71224908.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80942217 - 2⁶ = 80942153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80942237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35658 + ... + 37859.

It is an arithmetic number, because the mean of its divisors is an integer number (13527312).

Almost surely, 2^80942217 is an apocalyptic number.

It is an amenable number.

80942217 is a deficient number, since it is larger than the sum of its proper divisors (27276279).

80942217 is a wasteful number, since it uses less digits than its factorization.

80942217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73887.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 80942217 is about 8996.7892606196. The cubic root of 80942217 is about 432.5719608063.

The spelling of 80942217 in words is "eighty million, nine hundred forty-two thousand, two hundred seventeen".