272709391 has 2 divisors, whose sum is σ = 272709392. Its totient is φ = 272709390.

The previous prime is 272709377. The next prime is 272709403. The reversal of 272709391 is 193907272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 272709391 - 2²³ = 264320783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272709331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136354695 + 136354696.

It is an arithmetic number, because the mean of its divisors is an integer number (136354696).

Almost surely, 2^272709391 is an apocalyptic number.

272709391 is a deficient number, since it is larger than the sum of its proper divisors (1).

272709391 is an equidigital number, since it uses as much as digits as its factorization.

272709391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 272709391 is about 16513.9150718417. The cubic root of 272709391 is about 648.4851436975.

The spelling of 272709391 in words is "two hundred seventy-two million, seven hundred nine thousand, three hundred ninety-one".