272249647 has 4 divisors (see below), whose sum is σ = 272398896. Its totient is φ = 272100400.

The previous prime is 272249629. The next prime is 272249669. The reversal of 272249647 is 746942272.

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 272249647 - 2¹⁹ = 271725359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272249687) 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, 71854 + ... + 75547.

It is an arithmetic number, because the mean of its divisors is an integer number (68099724).

Almost surely, 2^272249647 is an apocalyptic number.

272249647 is a deficient number, since it is larger than the sum of its proper divisors (149249).

272249647 is a wasteful number, since it uses less digits than its factorization.

272249647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149248.

The product of its digits is 338688, while the sum is 43.

The square root of 272249647 is about 16499.9893030268. The cubic root of 272249647 is about 648.1205249765.

The spelling of 272249647 in words is "two hundred seventy-two million, two hundred forty-nine thousand, six hundred forty-seven".