213434 has 8 divisors (see below), whose sum is σ = 344820. Its totient is φ = 98496.

The previous prime is 213407. The next prime is 213449. The reversal of 213434 is 434312.

213434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 172225 + 41209 = 415^2 + 203^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4079 + ... + 4130.

2²¹³⁴³⁴ is an apocalyptic number.

213434 is a deficient number, since it is larger than the sum of its proper divisors (131386).

213434 is a wasteful number, since it uses less digits than its factorization.

213434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8224.

The product of its digits is 288, while the sum is 17.

The square root of 213434 is about 461.9891773624. The cubic root of 213434 is about 59.7614603111.

Adding to 213434 its reverse (434312), we get a palindrome (647746).

The spelling of 213434 in words is "two hundred thirteen thousand, four hundred thirty-four".