423645093 has 16 divisors (see below), whose sum is σ = 628568640. Its totient is φ = 282004272.

The previous prime is 423645091. The next prime is 423645107. The reversal of 423645093 is 390546324.

423645093 is a `hidden beast` number, since 4 + 2 + 3 + 645 + 0 + 9 + 3 = 666.

It is not a de Polignac number, because 423645093 - 2¹ = 423645091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423645091) 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 15 ways as a sum of consecutive naturals, for example, 6955 + ... + 29927.

It is an arithmetic number, because the mean of its divisors is an integer number (39285540).

Almost surely, 2^423645093 is an apocalyptic number.

It is an amenable number.

423645093 is a deficient number, since it is larger than the sum of its proper divisors (204923547).

423645093 is a wasteful number, since it uses less digits than its factorization.

423645093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23665 (or 23659 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 423645093 is about 20582.6405740371. The cubic root of 423645093 is about 751.0474803654.

The spelling of 423645093 in words is "four hundred twenty-three million, six hundred forty-five thousand, ninety-three".