8044389 has 6 divisors (see below), whose sum is σ = 11619686. Its totient is φ = 5362920.

The previous prime is 8044373. The next prime is 8044409. The reversal of 8044389 is 9834408.

It can be written as a sum of positive squares in only one way, i.e., 7935489 + 108900 = 2817^2 + 330^2 .

It is not a de Polignac number, because 8044389 - 2⁴ = 8044373 is a prime.

It is a Duffinian number.

8044389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8044189) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 446902 + ... + 446919.

Almost surely, 2^8044389 is an apocalyptic number.

It is an amenable number.

8044389 is a deficient number, since it is larger than the sum of its proper divisors (3575297).

8044389 is a wasteful number, since it uses less digits than its factorization.

8044389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893827 (or 893824 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 8044389 is about 2836.2632106347. The cubic root of 8044389 is about 200.3692262737.

The spelling of 8044389 in words is "eight million, forty-four thousand, three hundred eighty-nine".