272872217 has 2 divisors, whose sum is σ = 272872218. Its totient is φ = 272872216.

The previous prime is 272872169. The next prime is 272872267. The reversal of 272872217 is 712278272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243016921 + 29855296 = 15589^2 + 5464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272872217 is a prime.

It is not a weakly prime, because it can be changed into another prime (272872267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136436108 + 136436109.

It is an arithmetic number, because the mean of its divisors is an integer number (136436109).

Almost surely, 2^272872217 is an apocalyptic number.

It is an amenable number.

272872217 is a deficient number, since it is larger than the sum of its proper divisors (1).

272872217 is an equidigital number, since it uses as much as digits as its factorization.

272872217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43904, while the sum is 38.

The square root of 272872217 is about 16518.8442997687. The cubic root of 272872217 is about 648.6141812219.

The spelling of 272872217 in words is "two hundred seventy-two million, eight hundred seventy-two thousand, two hundred seventeen".