423683173 has 2 divisors, whose sum is σ = 423683174. Its totient is φ = 423683172.

The previous prime is 423683149. The next prime is 423683177. The reversal of 423683173 is 371386324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 414814689 + 8868484 = 20367^2 + 2978^2 .

It is a cyclic number.

It is not a de Polignac number, because 423683173 - 2⁹ = 423682661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423683177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211841586 + 211841587.

It is an arithmetic number, because the mean of its divisors is an integer number (211841587).

Almost surely, 2^423683173 is an apocalyptic number.

It is an amenable number.

423683173 is a deficient number, since it is larger than the sum of its proper divisors (1).

423683173 is an equidigital number, since it uses as much as digits as its factorization.

423683173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 423683173 is about 20583.5656046274. The cubic root of 423683173 is about 751.0699827160.

The spelling of 423683173 in words is "four hundred twenty-three million, six hundred eighty-three thousand, one hundred seventy-three".