289076680 has 16 divisors (see below), whose sum is σ = 650422620. Its totient is φ = 115630656.

The previous prime is 289076663. The next prime is 289076699. The reversal of 289076680 is 86670982.

It can be written as a sum of positive squares in 2 ways, for example, as 266930244 + 22146436 = 16338^2 + 4706^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 289076680.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3613419 + ... + 3613498.

Almost surely, 2^289076680 is an apocalyptic number.

289076680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289076680 is an abundant number, since it is smaller than the sum of its proper divisors (361345940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289076680 is a wasteful number, since it uses less digits than its factorization.

289076680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7226928 (or 7226924 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 289076680 is about 17002.2551445389. The cubic root of 289076680 is about 661.2073706055.

The spelling of 289076680 in words is "two hundred eighty-nine million, seventy-six thousand, six hundred eighty".