636327849 has 8 divisors (see below), whose sum is σ = 849489120. Its totient is φ = 423692576.

The previous prime is 636327827. The next prime is 636327851. The reversal of 636327849 is 948723636.

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 636327849 - 2⁵ = 636327817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 636327798 and 636327807.

It is not an unprimeable number, because it can be changed into a prime (636327869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128667 + ... + 133520.

It is an arithmetic number, because the mean of its divisors is an integer number (106186140).

Almost surely, 2^636327849 is an apocalyptic number.

It is an amenable number.

636327849 is a deficient number, since it is larger than the sum of its proper divisors (213161271).

636327849 is a wasteful number, since it uses less digits than its factorization.

636327849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262999.

The product of its digits is 1306368, while the sum is 48.

The square root of 636327849 is about 25225.5396176177. The cubic root of 636327849 is about 860.1225032810.

The spelling of 636327849 in words is "six hundred thirty-six million, three hundred twenty-seven thousand, eight hundred forty-nine".