636484249 has 16 divisors (see below), whose sum is σ = 693606400. Its totient is φ = 581986944.

The previous prime is 636484241. The next prime is 636484259. The reversal of 636484249 is 942484636.

It is a cyclic number.

It is not a de Polignac number, because 636484249 - 2³ = 636484241 is a prime.

It is a super-2 number, since 2×636484249² = 810224398450188002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 636484199 and 636484208.

It is not an unprimeable number, because it can be changed into a prime (636484241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85717 + ... + 92845.

It is an arithmetic number, because the mean of its divisors is an integer number (43350400).

Almost surely, 2^636484249 is an apocalyptic number.

It is an amenable number.

636484249 is a deficient number, since it is larger than the sum of its proper divisors (57122151).

636484249 is a wasteful number, since it uses less digits than its factorization.

636484249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7312.

The product of its digits is 995328, while the sum is 46.

The square root of 636484249 is about 25228.6394599471. The cubic root of 636484249 is about 860.1929659835.

The spelling of 636484249 in words is "six hundred thirty-six million, four hundred eighty-four thousand, two hundred forty-nine".