423511717 has 4 divisors (see below), whose sum is σ = 425086380. Its totient is φ = 421937056.

The previous prime is 423511709. The next prime is 423511723. The reversal of 423511717 is 717115324.

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 238578916 + 184932801 = 15446^2 + 13599^2 .

It is a cyclic number.

It is not a de Polignac number, because 423511717 - 2³ = 423511709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423511787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786928 + ... + 787465.

It is an arithmetic number, because the mean of its divisors is an integer number (106271595).

Almost surely, 2^423511717 is an apocalyptic number.

It is an amenable number.

423511717 is a deficient number, since it is larger than the sum of its proper divisors (1574663).

423511717 is a wasteful number, since it uses less digits than its factorization.

423511717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574662.

The product of its digits is 5880, while the sum is 31.

The square root of 423511717 is about 20579.4003071032. The cubic root of 423511717 is about 750.9686547757.

The spelling of 423511717 in words is "four hundred twenty-three million, five hundred eleven thousand, seven hundred seventeen".