80220217 has 24 divisors (see below), whose sum is σ = 102731328. Its totient is φ = 61295520.

The previous prime is 80220209. The next prime is 80220221. The reversal of 80220217 is 71202208.

It is not a de Polignac number, because 80220217 - 2³ = 80220209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80220227) 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, 43998 + ... + 45784.

It is an arithmetic number, because the mean of its divisors is an integer number (4280472).

Almost surely, 2^80220217 is an apocalyptic number.

It is an amenable number.

80220217 is a deficient number, since it is larger than the sum of its proper divisors (22511111).

80220217 is a wasteful number, since it uses less digits than its factorization.

80220217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869 (or 1858 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 80220217 is about 8956.5739543645. The cubic root of 80220217 is about 431.2819450676.

Subtracting from 80220217 its reverse (71202208), we obtain a square (9018009 = 3003²).

The spelling of 80220217 in words is "eighty million, two hundred twenty thousand, two hundred seventeen".