6984889489 has 4 divisors (see below), whose sum is σ = 7173670324. Its totient is φ = 6796108656.

The previous prime is 6984889397. The next prime is 6984889493. The reversal of 6984889489 is 9849884896.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2630869264 + 4354020225 = 51292^2 + 65985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6984889489 is a prime.

It is a super-2 number, since 2×6984889489² = 97577362347085362242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6984881489) 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, 94390362 + ... + 94390435.

It is an arithmetic number, because the mean of its divisors is an integer number (1793417581).

Almost surely, 2^6984889489 is an apocalyptic number.

It is an amenable number.

6984889489 is a deficient number, since it is larger than the sum of its proper divisors (188780835).

6984889489 is a wasteful number, since it uses less digits than its factorization.

6984889489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188780834.

The product of its digits is 286654464, while the sum is 73.

The square root of 6984889489 is about 83575.6512927061. The cubic root of 6984889489 is about 1911.5537450837.

The spelling of 6984889489 in words is "six billion, nine hundred eighty-four million, eight hundred eighty-nine thousand, four hundred eighty-nine".