4278383 has 2 divisors, whose sum is σ = 4278384. Its totient is φ = 4278382.

The previous prime is 4278377. The next prime is 4278413. The reversal of 4278383 is 3838724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4278383 - 2⁴ = 4278367 is a prime.

It is a super-2 number, since 2×4278383² = 36609122189378, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4 + 2²² + 7⁵ + 8⁴ + 3³ + 8⁴ + 3¹⁰ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4278343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139191 + 2139192.

It is an arithmetic number, because the mean of its divisors is an integer number (2139192).

Almost surely, 2^4278383 is an apocalyptic number.

4278383 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278383 is an equidigital number, since it uses as much as digits as its factorization.

4278383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 4278383 is about 2068.4252464133. The cubic root of 4278383 is about 162.3403781679.

The spelling of 4278383 in words is "four million, two hundred seventy-eight thousand, three hundred eighty-three".