6609901 has 4 divisors (see below), whose sum is σ = 6897312. Its totient is φ = 6322492.

The previous prime is 6609893. The next prime is 6609971. The reversal of 6609901 is 1099066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1099066 = 2 ⋅549533.

It is a cyclic number.

It is not a de Polignac number, because 6609901 - 2³ = 6609893 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 (6609971) 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, 143671 + ... + 143716.

It is an arithmetic number, because the mean of its divisors is an integer number (1724328).

Almost surely, 2^6609901 is an apocalyptic number.

It is an amenable number.

6609901 is a deficient number, since it is larger than the sum of its proper divisors (287411).

6609901 is a wasteful number, since it uses less digits than its factorization.

6609901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287410.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 6609901 is about 2570.9727730958. The cubic root of 6609901 is about 187.6714970182.

The spelling of 6609901 in words is "six million, six hundred nine thousand, nine hundred one".