272536389 has 12 divisors (see below), whose sum is σ = 403265772. Its totient is φ = 177259200.

The previous prime is 272536357. The next prime is 272536391. The reversal of 272536389 is 983635272.

272536389 is a `hidden beast` number, since 2 + 7 + 2 + 5 + 3 + 638 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 74909025 + 197627364 = 8655^2 + 14058^2 .

It is not a de Polignac number, because 272536389 - 2⁵ = 272536357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272536889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 368922 + ... + 369659.

It is an arithmetic number, because the mean of its divisors is an integer number (33605481).

Almost surely, 2^272536389 is an apocalyptic number.

It is an amenable number.

272536389 is a deficient number, since it is larger than the sum of its proper divisors (130729383).

272536389 is a wasteful number, since it uses less digits than its factorization.

272536389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738628 (or 738625 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 272536389 is about 16508.6761734550. The cubic root of 272536389 is about 648.3479855326.

The spelling of 272536389 in words is "two hundred seventy-two million, five hundred thirty-six thousand, three hundred eighty-nine".