635249 has 2 divisors, whose sum is σ = 635250. Its totient is φ = 635248.

The previous prime is 635207. The next prime is 635251. The reversal of 635249 is 942536.

635249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 6400 = 793^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 635249 - 2¹² = 631153 is a prime.

It is a Sophie Germain prime.

Together with 635251, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (635279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317624 + 317625.

It is an arithmetic number, because the mean of its divisors is an integer number (317625).

2⁶³⁵²⁴⁹ is an apocalyptic number.

It is an amenable number.

635249 is a deficient number, since it is larger than the sum of its proper divisors (1).

635249 is an equidigital number, since it uses as much as digits as its factorization.

635249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 635249 is about 797.0250937078. The cubic root of 635249 is about 85.9636135958.

The spelling of 635249 in words is "six hundred thirty-five thousand, two hundred forty-nine".