80560477 has 4 divisors (see below), whose sum is σ = 82080540. Its totient is φ = 79040416.

The previous prime is 80560471. The next prime is 80560541. The reversal of 80560477 is 77406508.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30349081 + 50211396 = 5509^2 + 7086^2 .

It is a cyclic number.

It is not a de Polignac number, because 80560477 - 2⁷ = 80560349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80560471) 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 3 ways as a sum of consecutive naturals, for example, 759952 + ... + 760057.

It is an arithmetic number, because the mean of its divisors is an integer number (20520135).

Almost surely, 2^80560477 is an apocalyptic number.

It is an amenable number.

80560477 is a deficient number, since it is larger than the sum of its proper divisors (1520063).

80560477 is a wasteful number, since it uses less digits than its factorization.

80560477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520062.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 80560477 is about 8975.5488411573. The cubic root of 80560477 is about 431.8908564153.

The spelling of 80560477 in words is "eighty million, five hundred sixty thousand, four hundred seventy-seven".