272857869 has 16 divisors (see below), whose sum is σ = 415160640. Its totient is φ = 176988240.

The previous prime is 272857861. The next prime is 272857873. The reversal of 272857869 is 968758272.

It is a happy number.

272857869 is a `hidden beast` number, since 2 + 7 + 2 + 8 + 578 + 69 = 666.

It is not a de Polignac number, because 272857869 - 2³ = 272857861 is a prime.

It is a super-2 number, since 2×272857869² = 148902833350442322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272857861) 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 15 ways as a sum of consecutive naturals, for example, 135567 + ... + 137564.

It is an arithmetic number, because the mean of its divisors is an integer number (25947540).

Almost surely, 2^272857869 is an apocalyptic number.

It is an amenable number.

272857869 is a deficient number, since it is larger than the sum of its proper divisors (142302771).

272857869 is a wasteful number, since it uses less digits than its factorization.

272857869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273177 (or 273171 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 272857869 is about 16518.4100021764. The cubic root of 272857869 is about 648.6028126779.

The spelling of 272857869 in words is "two hundred seventy-two million, eight hundred fifty-seven thousand, eight hundred sixty-nine".