8921089 has 8 divisors (see below), whose sum is σ = 9505440. Its totient is φ = 8348256.

The previous prime is 8921071. The next prime is 8921123. The reversal of 8921089 is 9801298.

8921089 is digitally balanced in base 3, 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8921089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8921069) 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, 1252 + ... + 4405.

It is an arithmetic number, because the mean of its divisors is an integer number (1188180).

It is a Proth number, since it is equal to 1089 ⋅ 2¹³ + 1 and 1089 < 2¹³.

Almost surely, 2^8921089 is an apocalyptic number.

It is an amenable number.

8921089 is a deficient number, since it is larger than the sum of its proper divisors (584351).

8921089 is a wasteful number, since it uses less digits than its factorization.

8921089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 8921089 is about 2986.8192111341. The cubic root of 8921089 is about 207.3986653798.

The spelling of 8921089 in words is "eight million, nine hundred twenty-one thousand, eighty-nine".