80564841 has 32 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 45884880.

The previous prime is 80564839. The next prime is 80564851. The reversal of 80564841 is 14846508.

80564841 is a `hidden beast` number, since 8 + 0 + 5 + 648 + 4 + 1 = 666.

It is not a de Polignac number, because 80564841 - 2¹ = 80564839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80564796 and 80564805.

It is not an unprimeable number, because it can be changed into a prime (80564801) 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 31 ways as a sum of consecutive naturals, for example, 82486 + ... + 83456.

It is an arithmetic number, because the mean of its divisors is an integer number (4276800).

Almost surely, 2^80564841 is an apocalyptic number.

It is an amenable number.

80564841 is a deficient number, since it is larger than the sum of its proper divisors (56292759).

80564841 is a wasteful number, since it uses less digits than its factorization.

80564841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 80564841 is about 8975.7919427759. The cubic root of 80564841 is about 431.8986548533.

The spelling of 80564841 in words is "eighty million, five hundred sixty-four thousand, eight hundred forty-one".