8278783 has 2 divisors, whose sum is σ = 8278784. Its totient is φ = 8278782.

The previous prime is 8278763. The next prime is 8278789. The reversal of 8278783 is 3878728.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8278783 is a prime.

It is a super-2 number, since 2×8278783² = 137076495922178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8278789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4139391 + 4139392.

It is an arithmetic number, because the mean of its divisors is an integer number (4139392).

Almost surely, 2^8278783 is an apocalyptic number.

8278783 is a deficient number, since it is larger than the sum of its proper divisors (1).

8278783 is an equidigital number, since it uses as much as digits as its factorization.

8278783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 43.

The square root of 8278783 is about 2877.2874378484. The cubic root of 8278783 is about 202.2967161825.

The spelling of 8278783 in words is "eight million, two hundred seventy-eight thousand, seven hundred eighty-three".