6415441 has 2 divisors, whose sum is σ = 6415442. Its totient is φ = 6415440.

The previous prime is 6415439. The next prime is 6415447. The reversal of 6415441 is 1445146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6395841 + 19600 = 2529^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 6415441 - 2¹ = 6415439 is a prime.

It is a super-3 number, since 3×6415441³ (a number of 21 digits) contains 333 as substring.

Together with 6415439, it forms a pair of twin primes.

6415441 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6415447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3207720 + 3207721.

It is an arithmetic number, because the mean of its divisors is an integer number (3207721).

Almost surely, 2^6415441 is an apocalyptic number.

It is an amenable number.

6415441 is a deficient number, since it is larger than the sum of its proper divisors (1).

6415441 is an equidigital number, since it uses as much as digits as its factorization.

6415441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 6415441 is about 2532.8720852029. The cubic root of 6415441 is about 185.8127475348.

The spelling of 6415441 in words is "six million, four hundred fifteen thousand, four hundred forty-one".