213446323 has 4 divisors (see below), whose sum is σ = 224680360. Its totient is φ = 202212288.

The previous prime is 213446309. The next prime is 213446327. The reversal of 213446323 is 323644312.

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

It is not a de Polignac number, because 213446323 - 2⁹ = 213445811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213446291 and 213446300.

It is not an unprimeable number, because it can be changed into a prime (213446327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5616990 + ... + 5617027.

It is an arithmetic number, because the mean of its divisors is an integer number (56170090).

Almost surely, 2^213446323 is an apocalyptic number.

213446323 is a deficient number, since it is larger than the sum of its proper divisors (11234037).

213446323 is a wasteful number, since it uses less digits than its factorization.

213446323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11234036.

The product of its digits is 10368, while the sum is 28.

The square root of 213446323 is about 14609.8022916123. The cubic root of 213446323 is about 597.6261043451.

The spelling of 213446323 in words is "two hundred thirteen million, four hundred forty-six thousand, three hundred twenty-three".