6634445 has 4 divisors (see below), whose sum is σ = 7961340. Its totient is φ = 5307552.

The previous prime is 6634429. The next prime is 6634447. The reversal of 6634445 is 5444366.

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 3613801 + 3020644 = 1901^2 + 1738^2 .

It is a cyclic number.

It is not a de Polignac number, because 6634445 - 2⁴ = 6634429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6634447) 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, 663440 + ... + 663449.

It is an arithmetic number, because the mean of its divisors is an integer number (1990335).

Almost surely, 2^6634445 is an apocalyptic number.

It is an amenable number.

6634445 is a deficient number, since it is larger than the sum of its proper divisors (1326895).

6634445 is a wasteful number, since it uses less digits than its factorization.

6634445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326894.

The product of its digits is 34560, while the sum is 32.

The square root of 6634445 is about 2575.7416407707. The cubic root of 6634445 is about 187.9034984592.

The spelling of 6634445 in words is "six million, six hundred thirty-four thousand, four hundred forty-five".