423197 has 4 divisors (see below), whose sum is σ = 437820. Its totient is φ = 408576.

The previous prime is 423191. The next prime is 423209. The reversal of 423197 is 791324.

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 116281 + 306916 = 341^2 + 554^2 .

It is a cyclic number.

It is not a de Polignac number, because 423197 - 2⁶ = 423133 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 (423191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7268 + ... + 7325.

It is an arithmetic number, because the mean of its divisors is an integer number (109455).

2⁴²³¹⁹⁷ is an apocalyptic number.

It is an amenable number.

423197 is a deficient number, since it is larger than the sum of its proper divisors (14623).

423197 is a wasteful number, since it uses less digits than its factorization.

423197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14622.

The product of its digits is 1512, while the sum is 26.

The square root of 423197 is about 650.5359329046. The cubic root of 423197 is about 75.0782590526.

The spelling of 423197 in words is "four hundred twenty-three thousand, one hundred ninety-seven".