272898649 has 2 divisors, whose sum is σ = 272898650. Its totient is φ = 272898648.

The previous prime is 272898623. The next prime is 272898697. The reversal of 272898649 is 946898272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198387225 + 74511424 = 14085^2 + 8632^2 .

It is a cyclic number.

It is not a de Polignac number, because 272898649 - 2²³ = 264510041 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 272898649.

It is not a weakly prime, because it can be changed into another prime (272898049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136449324 + 136449325.

It is an arithmetic number, because the mean of its divisors is an integer number (136449325).

Almost surely, 2^272898649 is an apocalyptic number.

It is an amenable number.

272898649 is a deficient number, since it is larger than the sum of its proper divisors (1).

272898649 is an equidigital number, since it uses as much as digits as its factorization.

272898649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 55.

The square root of 272898649 is about 16519.6443363651. The cubic root of 272898649 is about 648.6351234010.

The spelling of 272898649 in words is "two hundred seventy-two million, eight hundred ninety-eight thousand, six hundred forty-nine".