6609879 has 6 divisors (see below), whose sum is σ = 9547616. Its totient is φ = 4406580.

The previous prime is 6609877. The next prime is 6609881. The reversal of 6609879 is 9789066.

It is an interprime number because it is at equal distance from previous prime (6609877) and next prime (6609881).

It is not a de Polignac number, because 6609879 - 2¹ = 6609877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6609877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367207 + ... + 367224.

Almost surely, 2^6609879 is an apocalyptic number.

6609879 is a deficient number, since it is larger than the sum of its proper divisors (2937737).

6609879 is a wasteful number, since it uses less digits than its factorization.

6609879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734437 (or 734434 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 6609879 is about 2570.9684945561. The cubic root of 6609879 is about 187.6712888065.

The spelling of 6609879 in words is "six million, six hundred nine thousand, eight hundred seventy-nine".