211713272 has 8 divisors (see below), whose sum is σ = 396962400. Its totient is φ = 105856632.

The previous prime is 211713251. The next prime is 211713283. The reversal of 211713272 is 272317112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13232072 + ... + 13232087.

It is an arithmetic number, because the mean of its divisors is an integer number (49620300).

Almost surely, 2^211713272 is an apocalyptic number.

211713272 is the 7778-th centered heptagonal number.

It is an amenable number.

211713272 is a deficient number, since it is larger than the sum of its proper divisors (185249128).

211713272 is a wasteful number, since it uses less digits than its factorization.

211713272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26464165 (or 26464161 counting only the distinct ones).

The product of its digits is 1176, while the sum is 26.

The square root of 211713272 is about 14550.3701671126. The cubic root of 211713272 is about 596.0042565346.

The spelling of 211713272 in words is "two hundred eleven million, seven hundred thirteen thousand, two hundred seventy-two".