271390989 has 16 divisors (see below), whose sum is σ = 364682304. Its totient is φ = 179520000.

The previous prime is 271390981. The next prime is 271391011. The reversal of 271390989 is 989093172.

It is not a de Polignac number, because 271390989 - 2³ = 271390981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271390981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265299 + ... + 266319.

It is an arithmetic number, because the mean of its divisors is an integer number (22792644).

Almost surely, 2^271390989 is an apocalyptic number.

It is an amenable number.

271390989 is a deficient number, since it is larger than the sum of its proper divisors (93291315).

271390989 is a wasteful number, since it uses less digits than its factorization.

271390989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 271390989 is about 16473.9487980265. The cubic root of 271390989 is about 647.4384304639.

The spelling of 271390989 in words is "two hundred seventy-one million, three hundred ninety thousand, nine hundred eighty-nine".