4280643 has 12 divisors (see below), whose sum is σ = 6508840. Its totient is φ = 2703456.

The previous prime is 4280629. The next prime is 4280657. The reversal of 4280643 is 3460824.

It is an interprime number because it is at equal distance from previous prime (4280629) and next prime (4280657).

It is not a de Polignac number, because 4280643 - 2⁵ = 4280611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4280623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12346 + ... + 12687.

Almost surely, 2^4280643 is an apocalyptic number.

4280643 is a deficient number, since it is larger than the sum of its proper divisors (2228197).

4280643 is a wasteful number, since it uses less digits than its factorization.

4280643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25058 (or 25055 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 4280643 is about 2068.9714836121. The cubic root of 4280643 is about 162.3689578652.

It can be divided in two parts, 42806 and 43, that added together give a square (42849 = 207²).

The spelling of 4280643 in words is "four million, two hundred eighty thousand, six hundred forty-three".