80447485 has 12 divisors (see below), whose sum is σ = 102551508. Its totient is φ = 60571136.

The previous prime is 80447467. The next prime is 80447489. The reversal of 80447485 is 58474408.

It can be written as a sum of positive squares in 6 ways, for example, as 14220441 + 66227044 = 3771^2 + 8138^2 .

It is a de Polignac number, because none of the positive numbers 2^k-80447485 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 (80447489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26392 + ... + 29281.

It is an arithmetic number, because the mean of its divisors is an integer number (8545959).

Almost surely, 2^80447485 is an apocalyptic number.

80447485 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

80447485 is a deficient number, since it is larger than the sum of its proper divisors (22104023).

80447485 is a wasteful number, since it uses less digits than its factorization.

80447485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55712 (or 55695 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 80447485 is about 8969.2521984834. The cubic root of 80447485 is about 431.6888423651.

The spelling of 80447485 in words is "eighty million, four hundred forty-seven thousand, four hundred eighty-five".