243028487 has 16 divisors (see below), whose sum is σ = 276228960. Its totient is φ = 211963392.

The previous prime is 243028451. The next prime is 243028531. The reversal of 243028487 is 784820342.

It is a happy number.

243028487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243028487 - 2¹² = 243024391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243028487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243028417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111803 + ... + 113955.

It is an arithmetic number, because the mean of its divisors is an integer number (17264310).

Almost surely, 2^243028487 is an apocalyptic number.

243028487 is a deficient number, since it is larger than the sum of its proper divisors (33200473).

243028487 is a wasteful number, since it uses less digits than its factorization.

243028487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642.

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 243028487 is about 15589.3709622935. The cubic root of 243028487 is about 624.0495308796.

The spelling of 243028487 in words is "two hundred forty-three million, twenty-eight thousand, four hundred eighty-seven".