289806922 has 8 divisors (see below), whose sum is σ = 460281636. Its totient is φ = 136379712.

The previous prime is 289806917. The next prime is 289806931. The reversal of 289806922 is 229608982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 283551921 + 6255001 = 16839^2 + 2501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×289806922² = 167976104078228168, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4261833 + ... + 4261900.

Almost surely, 2^289806922 is an apocalyptic number.

289806922 is a deficient number, since it is larger than the sum of its proper divisors (170474714).

289806922 is a wasteful number, since it uses less digits than its factorization.

289806922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523752.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 289806922 is about 17023.7164567553. The cubic root of 289806922 is about 661.7636652085.

The spelling of 289806922 in words is "two hundred eighty-nine million, eight hundred six thousand, nine hundred twenty-two".