8924389 has 2 divisors, whose sum is σ = 8924390. Its totient is φ = 8924388.

The previous prime is 8924387. The next prime is 8924411. The reversal of 8924389 is 9834298.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7562500 + 1361889 = 2750^2 + 1167^2 .

It is a cyclic number.

It is not a de Polignac number, because 8924389 - 2¹ = 8924387 is a prime.

Together with 8924387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8924387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4462194 + 4462195.

It is an arithmetic number, because the mean of its divisors is an integer number (4462195).

Almost surely, 2^8924389 is an apocalyptic number.

It is an amenable number.

8924389 is a deficient number, since it is larger than the sum of its proper divisors (1).

8924389 is an equidigital number, since it uses as much as digits as its factorization.

8924389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 8924389 is about 2987.3715871984. The cubic root of 8924389 is about 207.4242351737.

Subtracting 8924389 from its reverse (9834298), we obtain a palindrome (909909).

The spelling of 8924389 in words is "eight million, nine hundred twenty-four thousand, three hundred eighty-nine".