213499327 has 4 divisors (see below), whose sum is σ = 215572240. Its totient is φ = 211426416.

The previous prime is 213499301. The next prime is 213499331. The reversal of 213499327 is 723994312.

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 213499327 - 2⁷ = 213499199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213499327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213499367) 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, 1036302 + ... + 1036507.

It is an arithmetic number, because the mean of its divisors is an integer number (53893060).

Almost surely, 2^213499327 is an apocalyptic number.

213499327 is a deficient number, since it is larger than the sum of its proper divisors (2072913).

213499327 is a wasteful number, since it uses less digits than its factorization.

213499327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072912.

The product of its digits is 81648, while the sum is 40.

The square root of 213499327 is about 14611.6161665984. The cubic root of 213499327 is about 597.6755686975.

The spelling of 213499327 in words is "two hundred thirteen million, four hundred ninety-nine thousand, three hundred twenty-seven".