854909423 has 2 divisors, whose sum is σ = 854909424. Its totient is φ = 854909422.

The previous prime is 854909339. The next prime is 854909521. The reversal of 854909423 is 324909458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 854909423 - 2¹⁶ = 854843887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854909023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427454711 + 427454712.

It is an arithmetic number, because the mean of its divisors is an integer number (427454712).

Almost surely, 2^854909423 is an apocalyptic number.

854909423 is a deficient number, since it is larger than the sum of its proper divisors (1).

854909423 is an equidigital number, since it uses as much as digits as its factorization.

854909423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 854909423 is about 29238.8341593847. The cubic root of 854909423 is about 949.0884785870.

The spelling of 854909423 in words is "eight hundred fifty-four million, nine hundred nine thousand, four hundred twenty-three".