287980323 has 16 divisors (see below), whose sum is σ = 414235296. Its totient is φ = 177282560.

The previous prime is 287980279. The next prime is 287980333. The reversal of 287980323 is 323089782.

It is a cyclic number.

It is not a de Polignac number, because 287980323 - 2⁸ = 287980067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (287980333) 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 15 ways as a sum of consecutive naturals, for example, 50568 + ... + 55973.

It is an arithmetic number, because the mean of its divisors is an integer number (25889706).

Almost surely, 2^287980323 is an apocalyptic number.

287980323 is a deficient number, since it is larger than the sum of its proper divisors (126254973).

287980323 is a wasteful number, since it uses less digits than its factorization.

287980323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106614.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 287980323 is about 16969.9829994022. The cubic root of 287980323 is about 660.3704096164.

The spelling of 287980323 in words is "two hundred eighty-seven million, nine hundred eighty thousand, three hundred twenty-three".