80580705 has 16 divisors (see below), whose sum is σ = 133375680. Its totient is φ = 41494208.

The previous prime is 80580679. The next prime is 80580719. The reversal of 80580705 is 50708508.

It is a cyclic number.

It is not a de Polignac number, because 80580705 - 2²⁴ = 63803489 is a prime.

It is an unprimeable number.

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, 92187 + ... + 93056.

It is an arithmetic number, because the mean of its divisors is an integer number (8335980).

Almost surely, 2^80580705 is an apocalyptic number.

It is an amenable number.

80580705 is a deficient number, since it is larger than the sum of its proper divisors (52794975).

80580705 is a wasteful number, since it uses less digits than its factorization.

80580705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185280.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 80580705 is about 8976.6756096007. The cubic root of 80580705 is about 431.9270013401.

The spelling of 80580705 in words is "eighty million, five hundred eighty thousand, seven hundred five".