213376 has 16 divisors (see below), whose sum is σ = 425340. Its totient is φ = 106624.

The previous prime is 213361. The next prime is 213383. The reversal of 213376 is 673312.

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706 + ... + 961.

2²¹³³⁷⁶ is an apocalyptic number.

It is an amenable number.

213376 is a deficient number, since it is larger than the sum of its proper divisors (211964).

213376 is an equidigital number, since it uses as much as digits as its factorization.

213376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681 (or 1669 counting only the distinct ones).

The product of its digits is 756, while the sum is 22.

The square root of 213376 is about 461.9264010641. The cubic root of 213376 is about 59.7560464928.

Adding to 213376 its reverse (673312), we get a palindrome (886688).

It can be divided in two parts, 2133 and 76, that added together give a square (2209 = 47²).

The spelling of 213376 in words is "two hundred thirteen thousand, three hundred seventy-six".