6404611 has 2 divisors, whose sum is σ = 6404612. Its totient is φ = 6404610.

The previous prime is 6404599. The next prime is 6404623. The reversal of 6404611 is 1164046.

It is a balanced prime because it is at equal distance from previous prime (6404599) and next prime (6404623).

It is a cyclic number.

It is not a de Polignac number, because 6404611 - 2¹⁵ = 6371843 is a prime.

It is a super-2 number, since 2×6404611² = 82038084122642, which contains 22 as substring.

6404611 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6404681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202305 + 3202306.

It is an arithmetic number, because the mean of its divisors is an integer number (3202306).

Almost surely, 2^6404611 is an apocalyptic number.

6404611 is a deficient number, since it is larger than the sum of its proper divisors (1).

6404611 is an equidigital number, since it uses as much as digits as its factorization.

6404611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 6404611 is about 2530.7332929410. The cubic root of 6404611 is about 185.7081309034.

Adding to 6404611 its reverse (1164046), we get a palindrome (7568657).

The spelling of 6404611 in words is "six million, four hundred four thousand, six hundred eleven".