6680417 has 4 divisors (see below), whose sum is σ = 6843396. Its totient is φ = 6517440.

The previous prime is 6680413. The next prime is 6680431. The reversal of 6680417 is 7140866.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7140866 = 2 ⋅3570433.

It can be written as a sum of positive squares in 2 ways, for example, as 707281 + 5973136 = 841^2 + 2444^2 .

It is a cyclic number.

It is not a de Polignac number, because 6680417 - 2² = 6680413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6680413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81428 + ... + 81509.

It is an arithmetic number, because the mean of its divisors is an integer number (1710849).

Almost surely, 2^6680417 is an apocalyptic number.

It is an amenable number.

6680417 is a deficient number, since it is larger than the sum of its proper divisors (162979).

6680417 is a wasteful number, since it uses less digits than its factorization.

6680417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162978.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 6680417 is about 2584.6502664771. The cubic root of 6680417 is about 188.3365125071.

The spelling of 6680417 in words is "six million, six hundred eighty thousand, four hundred seventeen".