80963317 has 4 divisors (see below), whose sum is σ = 81765036. Its totient is φ = 80161600.

The previous prime is 80963297. The next prime is 80963321. The reversal of 80963317 is 71336908.

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 57547396 + 23415921 = 7586^2 + 4839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80963317 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 (80963017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400708 + ... + 400909.

It is an arithmetic number, because the mean of its divisors is an integer number (20441259).

Almost surely, 2^80963317 is an apocalyptic number.

It is an amenable number.

80963317 is a deficient number, since it is larger than the sum of its proper divisors (801719).

80963317 is a wasteful number, since it uses less digits than its factorization.

80963317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801718.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 80963317 is about 8997.9618247690. The cubic root of 80963317 is about 432.6095451297.

The spelling of 80963317 in words is "eighty million, nine hundred sixty-three thousand, three hundred seventeen".