6648434 has 8 divisors (see below), whose sum is σ = 10739820. Its totient is φ = 3068496.

The previous prime is 6648431. The next prime is 6648457. The reversal of 6648434 is 4348466.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6528025 + 120409 = 2555^2 + 347^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6648394 and 6648403.

It is not an unprimeable number, because it can be changed into a prime (6648431) 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, 127829 + ... + 127880.

Almost surely, 2^6648434 is an apocalyptic number.

6648434 is a deficient number, since it is larger than the sum of its proper divisors (4091386).

6648434 is a wasteful number, since it uses less digits than its factorization.

6648434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255724.

The product of its digits is 55296, while the sum is 35.

The square root of 6648434 is about 2578.4557393913. The cubic root of 6648434 is about 188.0354731614.

Subtracting from 6648434 its reverse (4348466), we obtain a cube (2299968 = 132³).

The spelling of 6648434 in words is "six million, six hundred forty-eight thousand, four hundred thirty-four".