272844661 has 2 divisors, whose sum is σ = 272844662. Its totient is φ = 272844660.

The previous prime is 272844601. The next prime is 272844739. The reversal of 272844661 is 166448272.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222576561 + 50268100 = 14919^2 + 7090^2 .

It is a cyclic number.

It is not a de Polignac number, because 272844661 - 2¹¹ = 272842613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272844601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136422330 + 136422331.

It is an arithmetic number, because the mean of its divisors is an integer number (136422331).

Almost surely, 2^272844661 is an apocalyptic number.

It is an amenable number.

272844661 is a deficient number, since it is larger than the sum of its proper divisors (1).

272844661 is an equidigital number, since it uses as much as digits as its factorization.

272844661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 40.

The square root of 272844661 is about 16518.0102009897. The cubic root of 272844661 is about 648.5923470532.

The spelling of 272844661 in words is "two hundred seventy-two million, eight hundred forty-four thousand, six hundred sixty-one".