272628665 has 4 divisors (see below), whose sum is σ = 327154404. Its totient is φ = 218102928.

The previous prime is 272628611. The next prime is 272628709. The reversal of 272628665 is 566826272.

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 116553616 + 156075049 = 10796^2 + 12493^2 .

It is a cyclic number.

It is not a de Polignac number, because 272628665 - 2⁸ = 272628409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27262862 + ... + 27262871.

It is an arithmetic number, because the mean of its divisors is an integer number (81788601).

Almost surely, 2^272628665 is an apocalyptic number.

It is an amenable number.

272628665 is a deficient number, since it is larger than the sum of its proper divisors (54525739).

272628665 is an equidigital number, since it uses as much as digits as its factorization.

272628665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54525738.

The product of its digits is 483840, while the sum is 44.

The square root of 272628665 is about 16511.4707097823. The cubic root of 272628665 is about 648.4211503286.

The spelling of 272628665 in words is "two hundred seventy-two million, six hundred twenty-eight thousand, six hundred sixty-five".