6989611 has 4 divisors (see below), whose sum is σ = 7002424. Its totient is φ = 6976800.

The previous prime is 6989599. The next prime is 6989617. The reversal of 6989611 is 1169896.

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

It is a cyclic number.

It is not a de Polignac number, because 6989611 - 2⁵ = 6989579 is a prime.

It is a Duffinian number.

6989611 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6989617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550 + ... + 6691.

It is an arithmetic number, because the mean of its divisors is an integer number (1750606).

Almost surely, 2^6989611 is an apocalyptic number.

6989611 is a deficient number, since it is larger than the sum of its proper divisors (12813).

6989611 is a wasteful number, since it uses less digits than its factorization.

6989611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12812.

The product of its digits is 23328, while the sum is 40.

The square root of 6989611 is about 2643.7872456005. The cubic root of 6989611 is about 191.1984359827.

The spelling of 6989611 in words is "six million, nine hundred eighty-nine thousand, six hundred eleven".