272758649 has 2 divisors, whose sum is σ = 272758650. Its totient is φ = 272758648.

The previous prime is 272758627. The next prime is 272758663. The reversal of 272758649 is 946857272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272019049 + 739600 = 16493^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 272758649 - 2²⁰ = 271710073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 272758597 and 272758606.

It is not a weakly prime, because it can be changed into another prime (272758669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136379324 + 136379325.

It is an arithmetic number, because the mean of its divisors is an integer number (136379325).

Almost surely, 2^272758649 is an apocalyptic number.

It is an amenable number.

272758649 is a deficient number, since it is larger than the sum of its proper divisors (1).

272758649 is an equidigital number, since it uses as much as digits as its factorization.

272758649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 50.

The square root of 272758649 is about 16515.4064134068. The cubic root of 272758649 is about 648.5241854506.

The spelling of 272758649 in words is "two hundred seventy-two million, seven hundred fifty-eight thousand, six hundred forty-nine".