289948671 has 6 divisors (see below), whose sum is σ = 418814760. Its totient is φ = 193299108.

The previous prime is 289948667. The next prime is 289948691. The reversal of 289948671 is 176849982.

289948671 is a `hidden beast` number, since 2 + 8 + 99 + 486 + 71 = 666.

It is not a de Polignac number, because 289948671 - 2² = 289948667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289948691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16108251 + ... + 16108268.

It is an arithmetic number, because the mean of its divisors is an integer number (69802460).

Almost surely, 2^289948671 is an apocalyptic number.

289948671 is a deficient number, since it is larger than the sum of its proper divisors (128866089).

289948671 is a wasteful number, since it uses less digits than its factorization.

289948671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32216525 (or 32216522 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 289948671 is about 17027.8792279015. The cubic root of 289948671 is about 661.8715405341.

The spelling of 289948671 in words is "two hundred eighty-nine million, nine hundred forty-eight thousand, six hundred seventy-one".