4278783 has 8 divisors (see below), whose sum is σ = 5714608. Its totient is φ = 2847744.

The previous prime is 4278773. The next prime is 4278829. The reversal of 4278783 is 3878724.

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

It is not a de Polignac number, because 4278783 - 2⁵ = 4278751 is a prime.

It is a super-2 number, since 2×4278783² = 36615967922178, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4¹¹ + 2¹¹ + 7 + 8⁵ + 7⁵ + 8⁵ + 3⁴ .

It is a Duffinian number.

4278783 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2841 + ... + 4077.

It is an arithmetic number, because the mean of its divisors is an integer number (714326).

Almost surely, 2^4278783 is an apocalyptic number.

4278783 is a deficient number, since it is larger than the sum of its proper divisors (1435825).

4278783 is a wasteful number, since it uses less digits than its factorization.

4278783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393.

The product of its digits is 75264, while the sum is 39.

The square root of 4278783 is about 2068.5219360693. The cubic root of 4278783 is about 162.3454372543.

The spelling of 4278783 in words is "four million, two hundred seventy-eight thousand, seven hundred eighty-three".