272856447 has 12 divisors (see below), whose sum is σ = 407716920. Its totient is φ = 175631568.

The previous prime is 272856427. The next prime is 272856469. The reversal of 272856447 is 744658272.

It is a happy number.

272856447 is a `hidden beast` number, since 27 + 28 + 564 + 47 = 666.

It is not a de Polignac number, because 272856447 - 2⁷ = 272856319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272856427) 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, 522453 + ... + 522974.

It is an arithmetic number, because the mean of its divisors is an integer number (33976410).

Almost surely, 2^272856447 is an apocalyptic number.

272856447 is a deficient number, since it is larger than the sum of its proper divisors (134860473).

272856447 is a wasteful number, since it uses less digits than its factorization.

272856447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045462 (or 1045459 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 272856447 is about 16518.3669592366. The cubic root of 272856447 is about 648.6016859438.

The spelling of 272856447 in words is "two hundred seventy-two million, eight hundred fifty-six thousand, four hundred forty-seven".