80820441 has 24 divisors (see below), whose sum is σ = 129782016. Its totient is φ = 48129120.

The previous prime is 80820437. The next prime is 80820457. The reversal of 80820441 is 14402808.

It is not a de Polignac number, because 80820441 - 2² = 80820437 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80820461) 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 23 ways as a sum of consecutive naturals, for example, 7515 + ... + 14768.

It is an arithmetic number, because the mean of its divisors is an integer number (5407584).

Almost surely, 2^80820441 is an apocalyptic number.

It is an amenable number.

80820441 is a deficient number, since it is larger than the sum of its proper divisors (48961575).

80820441 is a wasteful number, since it uses less digits than its factorization.

80820441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22333 (or 22330 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 80820441 is about 8990.0189654972. The cubic root of 80820441 is about 432.3549198756.

The spelling of 80820441 in words is "eighty million, eight hundred twenty thousand, four hundred forty-one".