6989081 has 16 divisors (see below), whose sum is σ = 7905600. Its totient is φ = 6175840.

The previous prime is 6989071. The next prime is 6989107. The reversal of 6989081 is 1809896.

It is not a de Polignac number, because 6989081 - 2¹⁰ = 6988057 is a prime.

It is a super-2 number, since 2×6989081² = 97694506449122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6989071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78485 + ... + 78573.

It is an arithmetic number, because the mean of its divisors is an integer number (494100).

Almost surely, 2^6989081 is an apocalyptic number.

It is an amenable number.

6989081 is a deficient number, since it is larger than the sum of its proper divisors (916519).

6989081 is an equidigital number, since it uses as much as digits as its factorization.

6989081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 6989081 is about 2643.6870087058. The cubic root of 6989081 is about 191.1936032039.

It can be divided in two parts, 698 and 9081, that added together give a palindrome (9779).

The spelling of 6989081 in words is "six million, nine hundred eighty-nine thousand, eighty-one".