6105989 has 4 divisors (see below), whose sum is σ = 6183360. Its totient is φ = 6028620.

The previous prime is 6105959. The next prime is 6105997. The reversal of 6105989 is 9895016.

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 a cyclic number.

It is not a de Polignac number, because 6105989 - 2²⁰ = 5057413 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6105919) 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, 38567 + ... + 38724.

It is an arithmetic number, because the mean of its divisors is an integer number (1545840).

Almost surely, 2^6105989 is an apocalyptic number.

It is an amenable number.

6105989 is a deficient number, since it is larger than the sum of its proper divisors (77371).

6105989 is an equidigital number, since it uses as much as digits as its factorization.

6105989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77370.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 6105989 is about 2471.0299472082. The cubic root of 6105989 is about 182.7757911878.

The spelling of 6105989 in words is "six million, one hundred five thousand, nine hundred eighty-nine".