272728091 has 2 divisors, whose sum is σ = 272728092. Its totient is φ = 272728090.

The previous prime is 272728087. The next prime is 272728103. The reversal of 272728091 is 190827272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 272728091 - 2² = 272728087 is a prime.

It is a super-2 number, since 2×272728091² = 148761223241008562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (272728051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136364045 + 136364046.

It is an arithmetic number, because the mean of its divisors is an integer number (136364046).

Almost surely, 2^272728091 is an apocalyptic number.

272728091 is a deficient number, since it is larger than the sum of its proper divisors (1).

272728091 is an equidigital number, since it uses as much as digits as its factorization.

272728091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 272728091 is about 16514.4812513140. The cubic root of 272728091 is about 648.4999658188.

The spelling of 272728091 in words is "two hundred seventy-two million, seven hundred twenty-eight thousand, ninety-one".