289476869 has 16 divisors (see below), whose sum is σ = 331309440. Its totient is φ = 250488000.

The previous prime is 289476841. The next prime is 289476881. The reversal of 289476869 is 968674982.

It is not a de Polignac number, because 289476869 - 2⁸ = 289476613 is a prime.

It is a super-2 number, since 2×289476869² = 167593715372086322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289476899) 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, 16259 + ... + 29039.

It is an arithmetic number, because the mean of its divisors is an integer number (20706840).

Almost surely, 2^289476869 is an apocalyptic number.

289476869 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

289476869 is a deficient number, since it is larger than the sum of its proper divisors (41832571).

289476869 is a wasteful number, since it uses less digits than its factorization.

289476869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12892.

The product of its digits is 10450944, while the sum is 59.

The square root of 289476869 is about 17014.0197778185. The cubic root of 289476869 is about 661.5123484003.

The spelling of 289476869 in words is "two hundred eighty-nine million, four hundred seventy-six thousand, eight hundred sixty-nine".