2089069921 has 4 divisors (see below), whose sum is σ = 2179899072. Its totient is φ = 1998240772.

The previous prime is 2089069919. The next prime is 2089069937. The reversal of 2089069921 is 1299609802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2089069921 - 2¹ = 2089069919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2089069901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45414541 + ... + 45414586.

It is an arithmetic number, because the mean of its divisors is an integer number (544974768).

Almost surely, 2^2089069921 is an apocalyptic number.

It is an amenable number.

2089069921 is a deficient number, since it is larger than the sum of its proper divisors (90829151).

2089069921 is an equidigital number, since it uses as much as digits as its factorization.

2089069921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90829150.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 2089069921 is about 45706.3444283176. The cubic root of 2089069921 is about 1278.3535799926.

It can be divided in two parts, 2089069 and 921, that added together give a triangular number (2089990 = T₂₀₄₄).

The spelling of 2089069921 in words is "two billion, eighty-nine million, sixty-nine thousand, nine hundred twenty-one".