635252239 has 8 divisors (see below), whose sum is σ = 639964080. Its totient is φ = 630550656.

The previous prime is 635252159. The next prime is 635252263. The reversal of 635252239 is 932252536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 635252239 - 2¹³ = 635244047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 635252198 and 635252207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635252269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157257 + ... + 161245.

It is an arithmetic number, because the mean of its divisors is an integer number (79995510).

Almost surely, 2^635252239 is an apocalyptic number.

635252239 is a deficient number, since it is larger than the sum of its proper divisors (4711841).

635252239 is a wasteful number, since it uses less digits than its factorization.

635252239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129.

The product of its digits is 97200, while the sum is 37.

The square root of 635252239 is about 25204.2107394776. The cubic root of 635252239 is about 859.6375969898.

The spelling of 635252239 in words is "six hundred thirty-five million, two hundred fifty-two thousand, two hundred thirty-nine".