636082049 has 4 divisors (see below), whose sum is σ = 639635760. Its totient is φ = 632528340.

The previous prime is 636082033. The next prime is 636082061. The reversal of 636082049 is 940280636.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 636082049 - 2⁴ = 636082033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (636082649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1776587 + ... + 1776944.

It is an arithmetic number, because the mean of its divisors is an integer number (159908940).

Almost surely, 2^636082049 is an apocalyptic number.

It is an amenable number.

636082049 is a deficient number, since it is larger than the sum of its proper divisors (3553711).

636082049 is a wasteful number, since it uses less digits than its factorization.

636082049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553710.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 636082049 is about 25220.6671006141. The cubic root of 636082049 is about 860.0117399695.

The spelling of 636082049 in words is "six hundred thirty-six million, eighty-two thousand, forty-nine".