271478399 has 2 divisors, whose sum is σ = 271478400. Its totient is φ = 271478398.

The previous prime is 271478371. The next prime is 271478401. The reversal of 271478399 is 993874172.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 271478399 - 2²⁸ = 3042943 is a prime.

It is a super-2 number, since 2×271478399² = 147401042247206402, which contains 22 as substring.

Together with 271478401, 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 (271478329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135739199 + 135739200.

It is an arithmetic number, because the mean of its divisors is an integer number (135739200).

Almost surely, 2^271478399 is an apocalyptic number.

271478399 is a deficient number, since it is larger than the sum of its proper divisors (1).

271478399 is an equidigital number, since it uses as much as digits as its factorization.

271478399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 50.

The square root of 271478399 is about 16476.6015610016. The cubic root of 271478399 is about 647.5079323030.

The spelling of 271478399 in words is "two hundred seventy-one million, four hundred seventy-eight thousand, three hundred ninety-nine".