4688149 has 2 divisors, whose sum is σ = 4688150. Its totient is φ = 4688148.

The previous prime is 4688147. The next prime is 4688153. The reversal of 4688149 is 9418864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4223025 + 465124 = 2055^2 + 682^2 .

It is a cyclic number.

It is not a de Polignac number, because 4688149 - 2¹ = 4688147 is a prime.

Together with 4688147, it forms a pair of twin primes.

4688149 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4688143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2344074 + 2344075.

It is an arithmetic number, because the mean of its divisors is an integer number (2344075).

Almost surely, 2^4688149 is an apocalyptic number.

It is an amenable number.

4688149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4688149 is an equidigital number, since it uses as much as digits as its factorization.

4688149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 40.

The square root of 4688149 is about 2165.2133844035. The cubic root of 4688149 is about 167.3659609327.

The spelling of 4688149 in words is "four million, six hundred eighty-eight thousand, one hundred forty-nine".