5647423 has 4 divisors (see below), whose sum is σ = 5658120. Its totient is φ = 5636728.

The previous prime is 5647409. The next prime is 5647457. The reversal of 5647423 is 3247465.

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

It is a cyclic number.

It is not a de Polignac number, because 5647423 - 2²¹ = 3550271 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5647483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4513 + ... + 5626.

It is an arithmetic number, because the mean of its divisors is an integer number (1414530).

Almost surely, 2^5647423 is an apocalyptic number.

5647423 is a deficient number, since it is larger than the sum of its proper divisors (10697).

5647423 is a wasteful number, since it uses less digits than its factorization.

5647423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10696.

The product of its digits is 20160, while the sum is 31.

The square root of 5647423 is about 2376.4307269517. The cubic root of 5647423 is about 178.0806666317.

The spelling of 5647423 in words is "five million, six hundred forty-seven thousand, four hundred twenty-three".