6434401 has 2 divisors, whose sum is σ = 6434402. Its totient is φ = 6434400.

The previous prime is 6434383. The next prime is 6434429. The reversal of 6434401 is 1044346.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5832225 + 602176 = 2415^2 + 776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6434401 is a prime.

It is a Chen prime.

6434401 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6434431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217200 + 3217201.

It is an arithmetic number, because the mean of its divisors is an integer number (3217201).

Almost surely, 2^6434401 is an apocalyptic number.

It is an amenable number.

6434401 is a deficient number, since it is larger than the sum of its proper divisors (1).

6434401 is an equidigital number, since it uses as much as digits as its factorization.

6434401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 6434401 is about 2536.6121106705. The cubic root of 6434401 is about 185.9956159602.

Adding to 6434401 its reverse (1044346), we get a palindrome (7478747).

The spelling of 6434401 in words is "six million, four hundred thirty-four thousand, four hundred one".