271990471 has 4 divisors (see below), whose sum is σ = 272159272. Its totient is φ = 271821672.

The previous prime is 271990447. The next prime is 271990483. The reversal of 271990471 is 174099172.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 271990471 - 2⁷ = 271990343 is a prime.

It is a super-3 number, since 3×271990471³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271991471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81960 + ... + 85213.

It is an arithmetic number, because the mean of its divisors is an integer number (68039818).

Almost surely, 2^271990471 is an apocalyptic number.

271990471 is a deficient number, since it is larger than the sum of its proper divisors (168801).

271990471 is a wasteful number, since it uses less digits than its factorization.

271990471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168800.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 271990471 is about 16492.1336096940. The cubic root of 271990471 is about 647.9147939267.

The spelling of 271990471 in words is "two hundred seventy-one million, nine hundred ninety thousand, four hundred seventy-one".