80317445 has 8 divisors (see below), whose sum is σ = 103794936. Its totient is φ = 59311296.

The previous prime is 80317441. The next prime is 80317451. The reversal of 80317445 is 54471308.

It is a Cunningham number, because it is equal to 8962²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 11874916 + 68442529 = 3446^2 + 8273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80317445 - 2² = 80317441 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 (80317441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617762 + ... + 617891.

It is an arithmetic number, because the mean of its divisors is an integer number (12974367).

Almost surely, 2^80317445 is an apocalyptic number.

It is an amenable number.

80317445 is a deficient number, since it is larger than the sum of its proper divisors (23477491).

80317445 is a wasteful number, since it uses less digits than its factorization.

80317445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235671.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 80317445 is about 8962.0000557911. Note that the first 4 decimals coincide. The cubic root of 80317445 is about 431.4561145930.

The spelling of 80317445 in words is "eighty million, three hundred seventeen thousand, four hundred forty-five".