2989380921 has 8 divisors (see below), whose sum is σ = 3986264160. Its totient is φ = 1992709152.

The previous prime is 2989380893. The next prime is 2989380943. The reversal of 2989380921 is 1290839892.

2989380921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2989380921 - 2¹⁴ = 2989364537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2989380421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16260 + ... + 79013.

It is an arithmetic number, because the mean of its divisors is an integer number (498283020).

Almost surely, 2^2989380921 is an apocalyptic number.

It is an amenable number.

2989380921 is a deficient number, since it is larger than the sum of its proper divisors (996883239).

2989380921 is a wasteful number, since it uses less digits than its factorization.

2989380921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105735.

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 2989380921 is about 54675.2313301005. The cubic root of 2989380921 is about 1440.5458516069.

The spelling of 2989380921 in words is "two billion, nine hundred eighty-nine million, three hundred eighty thousand, nine hundred twenty-one".