272399917 has 2 divisors, whose sum is σ = 272399918. Its totient is φ = 272399916.

The previous prime is 272399849. The next prime is 272399951. The reversal of 272399917 is 719993272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178329316 + 94070601 = 13354^2 + 9699^2 .

It is a cyclic number.

It is not a de Polignac number, because 272399917 - 2¹⁹ = 271875629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272399417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136199958 + 136199959.

It is an arithmetic number, because the mean of its divisors is an integer number (136199959).

Almost surely, 2^272399917 is an apocalyptic number.

It is an amenable number.

272399917 is a deficient number, since it is larger than the sum of its proper divisors (1).

272399917 is an equidigital number, since it uses as much as digits as its factorization.

272399917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 49.

The square root of 272399917 is about 16504.5423141631. The cubic root of 272399917 is about 648.2397478527.

The spelling of 272399917 in words is "two hundred seventy-two million, three hundred ninety-nine thousand, nine hundred seventeen".