2179423 has 4 divisors (see below), whose sum is σ = 2194200. Its totient is φ = 2164648.

The previous prime is 2179399. The next prime is 2179459. The reversal of 2179423 is 3249712.

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 2179423 - 2⁵ = 2179391 is a prime.

It is a super-2 number, since 2×2179423² = 9499769225858, which contains 22 as substring.

It is a Duffinian number.

2179423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2179391 and 2179400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179223) 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, 7165 + ... + 7462.

It is an arithmetic number, because the mean of its divisors is an integer number (548550).

2^2179423 is an apocalyptic number.

2179423 is a deficient number, since it is larger than the sum of its proper divisors (14777).

2179423 is a wasteful number, since it uses less digits than its factorization.

2179423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14776.

The product of its digits is 3024, while the sum is 28.

The square root of 2179423 is about 1476.2868962366. The cubic root of 2179423 is about 129.6523849284.

The spelling of 2179423 in words is "two million, one hundred seventy-nine thousand, four hundred twenty-three".