271939897 has 2 divisors, whose sum is σ = 271939898. Its totient is φ = 271939896.

The previous prime is 271939861. The next prime is 271939903. The reversal of 271939897 is 798939172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222039801 + 49900096 = 14901^2 + 7064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-271939897 is a prime.

It is not a weakly prime, because it can be changed into another prime (271939807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135969948 + 135969949.

It is an arithmetic number, because the mean of its divisors is an integer number (135969949).

Almost surely, 2^271939897 is an apocalyptic number.

It is an amenable number.

271939897 is a deficient number, since it is larger than the sum of its proper divisors (1).

271939897 is an equidigital number, since it uses as much as digits as its factorization.

271939897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 55.

The square root of 271939897 is about 16490.6002619674. The cubic root of 271939897 is about 647.8746336057.

The spelling of 271939897 in words is "two hundred seventy-one million, nine hundred thirty-nine thousand, eight hundred ninety-seven".