8840389 has 8 divisors (see below), whose sum is σ = 9192960. Its totient is φ = 8491056.

The previous prime is 8840369. The next prime is 8840393. The reversal of 8840389 is 9830488.

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

It is a cyclic number.

It is not a de Polignac number, because 8840389 - 2¹⁷ = 8709317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8840309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5784 + ... + 7150.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^8840389 is an apocalyptic number.

It is an amenable number.

8840389 is a deficient number, since it is larger than the sum of its proper divisors (352571).

8840389 is a wasteful number, since it uses less digits than its factorization.

8840389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 8840389 is about 2973.2791661733. The cubic root of 8840389 is about 206.7713953529.

Subtracting 8840389 from its reverse (9830488), we obtain a palindrome (990099).

It can be divided in two parts, 8840 and 389, that added together give a palindrome (9229).

The spelling of 8840389 in words is "eight million, eight hundred forty thousand, three hundred eighty-nine".