2389706289 has 12 divisors (see below), whose sum is σ = 3452222800. Its totient is φ = 1592941464.

The previous prime is 2389706281. The next prime is 2389706317. The reversal of 2389706289 is 9826079832.

It is a happy number.

2389706289 is a `hidden beast` number, since 2 + 3 + 8 + 9 + 7 + 0 + 628 + 9 = 666.

It is not a de Polignac number, because 2389706289 - 2³ = 2389706281 is a prime.

It is a super-2 number, since 2×2389706289² = 11421392295372303042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2389706281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127482 + ... + 145020.

Almost surely, 2^2389706289 is an apocalyptic number.

It is an amenable number.

2389706289 is a deficient number, since it is larger than the sum of its proper divisors (1062516511).

2389706289 is a wasteful number, since it uses less digits than its factorization.

2389706289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32684 (or 32681 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 2389706289 is about 48884.6222139437. The cubic root of 2389706289 is about 1336.9490044057.

The spelling of 2389706289 in words is "two billion, three hundred eighty-nine million, seven hundred six thousand, two hundred eighty-nine".