4287845 has 4 divisors (see below), whose sum is σ = 5145420. Its totient is φ = 3430272.

The previous prime is 4287841. The next prime is 4287847. The reversal of 4287845 is 5487824.

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

It can be written as a sum of positive squares in 2 ways, for example, as 605284 + 3682561 = 778^2 + 1919^2 .

It is a cyclic number.

It is not a de Polignac number, because 4287845 - 2² = 4287841 is a prime.

It is a super-2 number, since 2×4287845² = 36771229488050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4287799 and 4287808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4287841) 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, 428780 + ... + 428789.

It is an arithmetic number, because the mean of its divisors is an integer number (1286355).

Almost surely, 2^4287845 is an apocalyptic number.

It is an amenable number.

4287845 is a deficient number, since it is larger than the sum of its proper divisors (857575).

4287845 is an equidigital number, since it uses as much as digits as its factorization.

4287845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857574.

The product of its digits is 71680, while the sum is 38.

The square root of 4287845 is about 2070.7112304713. The cubic root of 4287845 is about 162.4599664695.

The spelling of 4287845 in words is "four million, two hundred eighty-seven thousand, eight hundred forty-five".