4278287 has 8 divisors (see below), whose sum is σ = 4850160. Its totient is φ = 3741120.

The previous prime is 4278257. The next prime is 4278289. The reversal of 4278287 is 7828724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4278287 - 2⁶ = 4278223 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 4278287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8414 + ... + 8907.

It is an arithmetic number, because the mean of its divisors is an integer number (606270).

Almost surely, 2^4278287 is an apocalyptic number.

4278287 is a deficient number, since it is larger than the sum of its proper divisors (571873).

4278287 is a wasteful number, since it uses less digits than its factorization.

4278287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17353.

The product of its digits is 50176, while the sum is 38.

The square root of 4278287 is about 2068.4020402233. The cubic root of 4278287 is about 162.3391639403.

The spelling of 4278287 in words is "four million, two hundred seventy-eight thousand, two hundred eighty-seven".