423783205 has 4 divisors (see below), whose sum is σ = 508539852. Its totient is φ = 339026560.

The previous prime is 423783193. The next prime is 423783221. The reversal of 423783205 is 502387324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64529089 + 359254116 = 8033^2 + 18954^2 .

It is not a de Polignac number, because 423783205 - 2⁹ = 423782693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 42378316 + ... + 42378325.

It is an arithmetic number, because the mean of its divisors is an integer number (127134963).

Almost surely, 2^423783205 is an apocalyptic number.

It is an amenable number.

423783205 is a deficient number, since it is larger than the sum of its proper divisors (84756647).

423783205 is an equidigital number, since it uses as much as digits as its factorization.

423783205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84756646.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 423783205 is about 20585.9953609244. The cubic root of 423783205 is about 751.1290875104.

The spelling of 423783205 in words is "four hundred twenty-three million, seven hundred eighty-three thousand, two hundred five".