6959889 has 12 divisors (see below), whose sum is σ = 10167300. Its totient is φ = 4587264.

The previous prime is 6959881. The next prime is 6959891. The reversal of 6959889 is 9889596.

It can be written as a sum of positive squares in 2 ways, for example, as 3932289 + 3027600 = 1983^2 + 1740^2 .

It is not a de Polignac number, because 6959889 - 2³ = 6959881 is a prime.

It is a super-3 number, since 3×6959889³ (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6959881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3544 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (847275).

Almost surely, 2^6959889 is an apocalyptic number.

It is an amenable number.

6959889 is a deficient number, since it is larger than the sum of its proper divisors (3207411).

6959889 is a wasteful number, since it uses less digits than its factorization.

6959889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8784 (or 8781 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 6959889 is about 2638.1601543500. The cubic root of 6959889 is about 190.9270391907.

The spelling of 6959889 in words is "six million, nine hundred fifty-nine thousand, eight hundred eighty-nine".