6905089 has 4 divisors (see below), whose sum is σ = 6910420. Its totient is φ = 6899760.

The previous prime is 6905071. The next prime is 6905123. The reversal of 6905089 is 9805096.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2873025 + 4032064 = 1695^2 + 2008^2 .

It is a cyclic number.

It is not a de Polignac number, because 6905089 - 2⁵ = 6905057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6905029) 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, 667 + ... + 3775.

It is an arithmetic number, because the mean of its divisors is an integer number (1727605).

Almost surely, 2^6905089 is an apocalyptic number.

It is an amenable number.

6905089 is a deficient number, since it is larger than the sum of its proper divisors (5331).

6905089 is a wasteful number, since it uses less digits than its factorization.

6905089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 6905089 is about 2627.7536033654. The cubic root of 6905089 is about 190.4246182095.

The spelling of 6905089 in words is "six million, nine hundred five thousand, eighty-nine".