201705423 has 16 divisors (see below), whose sum is σ = 281089536. Its totient is φ = 128414880.

The previous prime is 201705401. The next prime is 201705433. The reversal of 201705423 is 324507102.

It is not a de Polignac number, because 201705423 - 2⁹ = 201704911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201705393 and 201705402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201705433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48153 + ... + 52173.

It is an arithmetic number, because the mean of its divisors is an integer number (17568096).

Almost surely, 2^201705423 is an apocalyptic number.

201705423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

201705423 is a deficient number, since it is larger than the sum of its proper divisors (79384113).

201705423 is a wasteful number, since it uses less digits than its factorization.

201705423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 201705423 is about 14202.3034399354. The cubic root of 201705423 is about 586.4610742599.

The spelling of 201705423 in words is "two hundred one million, seven hundred five thousand, four hundred twenty-three".