5636842 has 4 divisors (see below), whose sum is σ = 8455266. Its totient is φ = 2818420.

The previous prime is 5636831. The next prime is 5636849. The reversal of 5636842 is 2486365.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5377761 + 259081 = 2319^2 + 509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5636798 and 5636807.

It is not an unprimeable number, because it can be changed into a prime (5636849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1409209 + ... + 1409212.

Almost surely, 2^5636842 is an apocalyptic number.

5636842 is a deficient number, since it is larger than the sum of its proper divisors (2818424).

5636842 is a wasteful number, since it uses less digits than its factorization.

5636842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818423.

The product of its digits is 34560, while the sum is 34.

The square root of 5636842 is about 2374.2034453686. The cubic root of 5636842 is about 177.9693799116.

The spelling of 5636842 in words is "five million, six hundred thirty-six thousand, eight hundred forty-two".