82889271 has 16 divisors (see below), whose sum is σ = 123424000. Its totient is φ = 54978264.

The previous prime is 82889239. The next prime is 82889273. The reversal of 82889271 is 17298828.

It is a happy number.

It is not a de Polignac number, because 82889271 - 2⁵ = 82889239 is a prime.

It is a super-2 number, since 2×82889271² = 13741262493822882, which contains 22 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 (82889273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2341 + ... + 13086.

It is an arithmetic number, because the mean of its divisors is an integer number (7714000).

Almost surely, 2^82889271 is an apocalyptic number.

82889271 is a deficient number, since it is larger than the sum of its proper divisors (40534729).

82889271 is a wasteful number, since it uses less digits than its factorization.

82889271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15635 (or 15629 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 82889271 is about 9104.3545075969. The cubic root of 82889271 is about 436.0130018147.

The spelling of 82889271 in words is "eighty-two million, eight hundred eighty-nine thousand, two hundred seventy-one".