4689149 has 2 divisors, whose sum is σ = 4689150. Its totient is φ = 4689148.

The previous prime is 4689133. The next prime is 4689151. The reversal of 4689149 is 9419864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4020025 + 669124 = 2005^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 4689149 - 2⁴ = 4689133 is a prime.

Together with 4689151, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4689109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2344574 + 2344575.

It is an arithmetic number, because the mean of its divisors is an integer number (2344575).

Almost surely, 2^4689149 is an apocalyptic number.

It is an amenable number.

4689149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4689149 is an equidigital number, since it uses as much as digits as its factorization.

4689149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 4689149 is about 2165.4442962127. Note that the first 3 decimals coincide. The cubic root of 4689149 is about 167.3778600186.

The spelling of 4689149 in words is "four million, six hundred eighty-nine thousand, one hundred forty-nine".