5679209 has 4 divisors (see below), whose sum is σ = 5685060. Its totient is φ = 5673360.

The previous prime is 5679199. The next prime is 5679211. The reversal of 5679209 is 9029765.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4305625 + 1373584 = 2075^2 + 1172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5679209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5679259) 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 3 ways as a sum of consecutive naturals, for example, 1082 + ... + 3539.

It is an arithmetic number, because the mean of its divisors is an integer number (1421265).

Almost surely, 2^5679209 is an apocalyptic number.

It is an amenable number.

5679209 is a deficient number, since it is larger than the sum of its proper divisors (5851).

5679209 is a wasteful number, since it uses less digits than its factorization.

5679209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5850.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 5679209 is about 2383.1091036711. The cubic root of 5679209 is about 178.4141453020.

The spelling of 5679209 in words is "five million, six hundred seventy-nine thousand, two hundred nine".