285980303 has 4 divisors (see below), whose sum is σ = 326834640. Its totient is φ = 245125968.

The previous prime is 285980297. The next prime is 285980309. The reversal of 285980303 is 303089582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303089582 = 2 ⋅151544791.

It is an interprime number because it is at equal distance from previous prime (285980297) and next prime (285980309).

It is a cyclic number.

It is not a de Polignac number, because 285980303 - 2²⁴ = 269203087 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 (285980309) 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, 20427158 + ... + 20427171.

It is an arithmetic number, because the mean of its divisors is an integer number (81708660).

Almost surely, 2^285980303 is an apocalyptic number.

285980303 is a deficient number, since it is larger than the sum of its proper divisors (40854337).

285980303 is an equidigital number, since it uses as much as digits as its factorization.

285980303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40854336.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 285980303 is about 16910.9521612475. The cubic root of 285980303 is about 658.8381018934.

The spelling of 285980303 in words is "two hundred eighty-five million, nine hundred eighty thousand, three hundred three".