271791971 has 24 divisors (see below), whose sum is σ = 319333104. Its totient is φ = 228610560.

The previous prime is 271791967. The next prime is 271791983. The reversal of 271791971 is 179197172.

It is not a de Polignac number, because 271791971 - 2² = 271791967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271791901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1983815 + ... + 1983951.

It is an arithmetic number, because the mean of its divisors is an integer number (13305546).

Almost surely, 2^271791971 is an apocalyptic number.

271791971 is a deficient number, since it is larger than the sum of its proper divisors (47541133).

271791971 is a wasteful number, since it uses less digits than its factorization.

271791971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 268 counting only the distinct ones).

The product of its digits is 55566, while the sum is 44.

The square root of 271791971 is about 16486.1144906858. The cubic root of 271791971 is about 647.7571384204.

The spelling of 271791971 in words is "two hundred seventy-one million, seven hundred ninety-one thousand, nine hundred seventy-one".