6414665 has 4 divisors (see below), whose sum is σ = 7697604. Its totient is φ = 5131728.

The previous prime is 6414659. The next prime is 6414673. The reversal of 6414665 is 5664146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5664146 = 2 ⋅2832073.

It can be written as a sum of positive squares in 2 ways, for example, as 3655744 + 2758921 = 1912^2 + 1661^2 .

It is a cyclic number.

It is not a de Polignac number, because 6414665 - 2⁶ = 6414601 is a prime.

It is a super-2 number, since 2×6414665² = 82295854124450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641462 + ... + 641471.

It is an arithmetic number, because the mean of its divisors is an integer number (1924401).

Almost surely, 2^6414665 is an apocalyptic number.

It is an amenable number.

6414665 is a deficient number, since it is larger than the sum of its proper divisors (1282939).

6414665 is a wasteful number, since it uses less digits than its factorization.

6414665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282938.

The product of its digits is 17280, while the sum is 32.

The square root of 6414665 is about 2532.7188947848. The cubic root of 6414665 is about 185.8052553761.

The spelling of 6414665 in words is "six million, four hundred fourteen thousand, six hundred sixty-five".