80577217 has 16 divisors (see below), whose sum is σ = 94377600. Its totient is φ = 68765424.

The previous prime is 80577197. The next prime is 80577239. The reversal of 80577217 is 71277508.

It is not a de Polignac number, because 80577217 - 2⁷ = 80577089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80577247) 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 15 ways as a sum of consecutive naturals, for example, 118683 + ... + 119359.

It is an arithmetic number, because the mean of its divisors is an integer number (5898600).

Almost surely, 2^80577217 is an apocalyptic number.

It is an amenable number.

80577217 is a deficient number, since it is larger than the sum of its proper divisors (13800383).

80577217 is an equidigital number, since it uses as much as digits as its factorization.

80577217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 37.

The square root of 80577217 is about 8976.4813262213. The cubic root of 80577217 is about 431.9207691487.

The spelling of 80577217 in words is "eighty million, five hundred seventy-seven thousand, two hundred seventeen".