8104989 has 4 divisors (see below), whose sum is σ = 10806656. Its totient is φ = 5403324.

The previous prime is 8104933. The next prime is 8104991. The reversal of 8104989 is 9894018.

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 not a de Polignac number, because 8104989 - 2⁷ = 8104861 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 (8104909) 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, 1350829 + ... + 1350834.

It is an arithmetic number, because the mean of its divisors is an integer number (2701664).

Almost surely, 2^8104989 is an apocalyptic number.

It is an amenable number.

8104989 is a deficient number, since it is larger than the sum of its proper divisors (2701667).

8104989 is a wasteful number, since it uses less digits than its factorization.

8104989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701666.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 8104989 is about 2846.9262371899. The cubic root of 8104989 is about 200.8711086732.

The spelling of 8104989 in words is "eight million, one hundred four thousand, nine hundred eighty-nine".