4198423 has 4 divisors (see below), whose sum is σ = 4333888. Its totient is φ = 4062960.

The previous prime is 4198409. The next prime is 4198429. The reversal of 4198423 is 3248914.

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

It is a cyclic number.

It is not a de Polignac number, because 4198423 - 2¹³ = 4190231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 135433 = 4198423 / (4 + 1 + 9 + 8 + 4 + 2 + 3).

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁶ + 1 + 9 + 8 + 4¹¹ + 2 + 3 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4198429) 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, 67686 + ... + 67747.

It is an arithmetic number, because the mean of its divisors is an integer number (1083472).

Almost surely, 2^4198423 is an apocalyptic number.

4198423 is a deficient number, since it is larger than the sum of its proper divisors (135465).

4198423 is a wasteful number, since it uses less digits than its factorization.

4198423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135464.

The product of its digits is 6912, while the sum is 31.

The square root of 4198423 is about 2049.0053684654. The cubic root of 4198423 is about 161.3226686065.

The spelling of 4198423 in words is "four million, one hundred ninety-eight thousand, four hundred twenty-three".