272947919 has 2 divisors, whose sum is σ = 272947920. Its totient is φ = 272947918.

The previous prime is 272947891. The next prime is 272947921. The reversal of 272947919 is 919749272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 272947919 - 2¹⁶ = 272882383 is a prime.

It is a super-2 number, since 2×272947919² = 149001132972861122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 272947921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272947979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136473959 + 136473960.

It is an arithmetic number, because the mean of its divisors is an integer number (136473960).

Almost surely, 2^272947919 is an apocalyptic number.

272947919 is a deficient number, since it is larger than the sum of its proper divisors (1).

272947919 is an equidigital number, since it uses as much as digits as its factorization.

272947919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 50.

The square root of 272947919 is about 16521.1355239281. The cubic root of 272947919 is about 648.6741566093.

The spelling of 272947919 in words is "two hundred seventy-two million, nine hundred forty-seven thousand, nine hundred nineteen".