8780423 has 2 divisors, whose sum is σ = 8780424. Its totient is φ = 8780422.

The previous prime is 8780419. The next prime is 8780459. The reversal of 8780423 is 3240878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8780423 - 2² = 8780419 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8780423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8780323) 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 as a sum of consecutive naturals, namely, 4390211 + 4390212.

It is an arithmetic number, because the mean of its divisors is an integer number (4390212).

Almost surely, 2^8780423 is an apocalyptic number.

8780423 is a deficient number, since it is larger than the sum of its proper divisors (1).

8780423 is an equidigital number, since it uses as much as digits as its factorization.

8780423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 8780423 is about 2963.1778549388. The cubic root of 8780423 is about 206.3028113309.

The spelling of 8780423 in words is "eight million, seven hundred eighty thousand, four hundred twenty-three".