272867761 has 4 divisors (see below), whose sum is σ = 275569524. Its totient is φ = 270166000.

The previous prime is 272867719. The next prime is 272867773. The reversal of 272867761 is 167768272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 248661361 + 24206400 = 15769^2 + 4920^2 .

It is a cyclic number.

It is not a de Polignac number, because 272867761 - 2⁹ = 272867249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272847761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350730 + ... + 1350931.

It is an arithmetic number, because the mean of its divisors is an integer number (68892381).

Almost surely, 2^272867761 is an apocalyptic number.

It is an amenable number.

272867761 is a deficient number, since it is larger than the sum of its proper divisors (2701763).

272867761 is a wasteful number, since it uses less digits than its factorization.

272867761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701762.

The product of its digits is 395136, while the sum is 46.

The square root of 272867761 is about 16518.7094229543. The cubic root of 272867761 is about 648.6106505821.

The spelling of 272867761 in words is "two hundred seventy-two million, eight hundred sixty-seven thousand, seven hundred sixty-one".