6677609 has 4 divisors (see below), whose sum is σ = 6787140. Its totient is φ = 6568080.

The previous prime is 6677597. The next prime is 6677611. The reversal of 6677609 is 9067766.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2689600 + 3988009 = 1640^2 + 1997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6677609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6677309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54674 + ... + 54795.

It is an arithmetic number, because the mean of its divisors is an integer number (1696785).

Almost surely, 2^6677609 is an apocalyptic number.

It is an amenable number.

6677609 is a deficient number, since it is larger than the sum of its proper divisors (109531).

6677609 is a wasteful number, since it uses less digits than its factorization.

6677609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109530.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 6677609 is about 2584.1070024285. The cubic root of 6677609 is about 188.3101207893.

The spelling of 6677609 in words is "six million, six hundred seventy-seven thousand, six hundred nine".