6434651 has 2 divisors, whose sum is σ = 6434652. Its totient is φ = 6434650.

The previous prime is 6434647. The next prime is 6434657. The reversal of 6434651 is 1564346.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6434651 - 2² = 6434647 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6434657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217325 + 3217326.

It is an arithmetic number, because the mean of its divisors is an integer number (3217326).

Almost surely, 2^6434651 is an apocalyptic number.

6434651 is a deficient number, since it is larger than the sum of its proper divisors (1).

6434651 is an equidigital number, since it uses as much as digits as its factorization.

6434651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 6434651 is about 2536.6613885184. The cubic root of 6434651 is about 185.9980247988.

Adding to 6434651 its reverse (1564346), we get a palindrome (7998997).

The spelling of 6434651 in words is "six million, four hundred thirty-four thousand, six hundred fifty-one".