4688669 has 2 divisors, whose sum is σ = 4688670. Its totient is φ = 4688668.

The previous prime is 4688653. The next prime is 4688683. The reversal of 4688669 is 9668864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4687225 + 1444 = 2165^2 + 38^2 .

It is a cyclic number.

It is not a de Polignac number, because 4688669 - 2⁴ = 4688653 is a prime.

It is a super-2 number, since 2×4688669² = 43967233983122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4688699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2344334 + 2344335.

It is an arithmetic number, because the mean of its divisors is an integer number (2344335).

Almost surely, 2^4688669 is an apocalyptic number.

It is an amenable number.

4688669 is a deficient number, since it is larger than the sum of its proper divisors (1).

4688669 is an equidigital number, since it uses as much as digits as its factorization.

4688669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 47.

The square root of 4688669 is about 2165.3334616174. Note that the first 3 decimals coincide. The cubic root of 4688669 is about 167.3721486685.

The spelling of 4688669 in words is "four million, six hundred eighty-eight thousand, six hundred sixty-nine".