302987 has 4 divisors (see below), whose sum is σ = 308016. Its totient is φ = 297960.

The previous prime is 302983. The next prime is 302989. The reversal of 302987 is 789203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 302987 - 2² = 302983 is a prime.

It is a super-2 number, since 2×302987² = 183602244338, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 302987.

It is not an unprimeable number, because it can be changed into a prime (302983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2423 + ... + 2544.

It is an arithmetic number, because the mean of its divisors is an integer number (77004).

2³⁰²⁹⁸⁷ is an apocalyptic number.

302987 is a deficient number, since it is larger than the sum of its proper divisors (5029).

302987 is an equidigital number, since it uses as much as digits as its factorization.

302987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 302987 is about 550.4425492274. The cubic root of 302987 is about 67.1647390362.

The spelling of 302987 in words is "three hundred two thousand, nine hundred eighty-seven".