2089678369 has 9 divisors (see below), whose sum is σ = 2220657177. Its totient is φ = 1966024704.

The previous prime is 2089678313. The next prime is 2089678373. The reversal of 2089678369 is 9638769802.

The square root of 2089678369 is 45713.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 181037025 + 1908641344 = 13455^2 + 43688^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2089678369 is a prime.

It is a super-2 number, since 2×2089678369² = 8733511371733000322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2089678309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 775777 + ... + 778465.

Almost surely, 2^2089678369 is an apocalyptic number.

2089678369 is the 45713-rd square number.

2089678369 is the 22857-th centered octagonal number.

It is an amenable number.

2089678369 is a deficient number, since it is larger than the sum of its proper divisors (130978808).

2089678369 is an frugal number, since it uses more digits than its factorization.

2089678369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412 (or 2706 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The cubic root of 2089678369 is about 1278.4776760748.

The spelling of 2089678369 in words is "two billion, eighty-nine million, six hundred seventy-eight thousand, three hundred sixty-nine".