6634309 has 6 divisors (see below), whose sum is σ = 7292390. Its totient is φ = 6031080.

The previous prime is 6634307. The next prime is 6634319. The reversal of 6634309 is 9034366.

It can be written as a sum of positive squares in only one way, i.e., 4743684 + 1890625 = 2178^2 + 1375^2 .

It is not a de Polignac number, because 6634309 - 2¹ = 6634307 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 (6634307) 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, 27294 + ... + 27535.

Almost surely, 2^6634309 is an apocalyptic number.

It is an amenable number.

6634309 is a deficient number, since it is larger than the sum of its proper divisors (658081).

6634309 is a wasteful number, since it uses less digits than its factorization.

6634309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54851 (or 54840 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 6634309 is about 2575.7152404721. The cubic root of 6634309 is about 187.9022145010.

The spelling of 6634309 in words is "six million, six hundred thirty-four thousand, three hundred nine".