5647842 has 24 divisors (see below), whose sum is σ = 12957516. Its totient is φ = 1771776.

The previous prime is 5647841. The next prime is 5647843. The reversal of 5647842 is 2487465.

5647842 is a `hidden beast` number, since 5 + 647 + 8 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (5647841) and next prime (5647843).

It can be written as a sum of positive squares in 2 ways, for example, as 5239521 + 408321 = 2289^2 + 639^2 .

It is a d-powerful number, because it can be written as 5⁸ + 6⁵ + 4⁶ + 7⁴ + 8² + 4¹⁰ + 2²² .

It is a junction number, because it is equal to n+sod(n) for n = 5647797 and 5647806.

It is not an unprimeable number, because it can be changed into a prime (5647841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8923 + ... + 9534.

Almost surely, 2^5647842 is an apocalyptic number.

5647842 is an abundant number, since it is smaller than the sum of its proper divisors (7309674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5647842 is a wasteful number, since it uses less digits than its factorization.

5647842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18482 (or 18479 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 5647842 is about 2376.5188827358. The cubic root of 5647842 is about 178.0850706436.

The spelling of 5647842 in words is "five million, six hundred forty-seven thousand, eight hundred forty-two".