213324647 has 12 divisors (see below), whose sum is σ = 231242616. Its totient is φ = 196622640.

The previous prime is 213324611. The next prime is 213324673. The reversal of 213324647 is 746423312.

It is a de Polignac number, because none of the positive numbers 2^k-213324647 is a prime.

It is a super-3 number, since 3×213324647³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213324847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5372 + ... + 21342.

It is an arithmetic number, because the mean of its divisors is an integer number (19270218).

Almost surely, 2^213324647 is an apocalyptic number.

213324647 is a deficient number, since it is larger than the sum of its proper divisors (17917969).

213324647 is a wasteful number, since it uses less digits than its factorization.

213324647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16046 (or 16027 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 213324647 is about 14605.6375074832. The cubic root of 213324647 is about 597.5125229777.

Adding to 213324647 its reverse (746423312), we get a palindrome (959747959).

The spelling of 213324647 in words is "two hundred thirteen million, three hundred twenty-four thousand, six hundred forty-seven".