4278763 has 4 divisors (see below), whose sum is σ = 4283568. Its totient is φ = 4273960.

The previous prime is 4278761. The next prime is 4278773. The reversal of 4278763 is 3678724.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4278763 - 2¹ = 4278761 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 2¹¹ + 7³ + 8⁵ + 7⁴ + 6⁶ + 3⁵ .

It is a Duffinian number.

4278763 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4278761) 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, 631 + ... + 2992.

It is an arithmetic number, because the mean of its divisors is an integer number (1070892).

Almost surely, 2^4278763 is an apocalyptic number.

4278763 is a deficient number, since it is larger than the sum of its proper divisors (4805).

4278763 is a wasteful number, since it uses less digits than its factorization.

4278763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804.

The product of its digits is 56448, while the sum is 37.

The square root of 4278763 is about 2068.5171016939. The cubic root of 4278763 is about 162.3451843075.

It can be divided in two parts, 4278 and 763, that added together give a square (5041 = 71²).

The spelling of 4278763 in words is "four million, two hundred seventy-eight thousand, seven hundred sixty-three".