5647723 has 4 divisors (see below), whose sum is σ = 5979960. Its totient is φ = 5315488.

The previous prime is 5647699. The next prime is 5647729. The reversal of 5647723 is 3277465.

It is a happy number.

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 5647723 - 2²¹ = 3550571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5647729) 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, 166093 + ... + 166126.

It is an arithmetic number, because the mean of its divisors is an integer number (1494990).

Almost surely, 2^5647723 is an apocalyptic number.

5647723 is a deficient number, since it is larger than the sum of its proper divisors (332237).

5647723 is a wasteful number, since it uses less digits than its factorization.

5647723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332236.

The product of its digits is 35280, while the sum is 34.

The square root of 5647723 is about 2376.4938459840. The cubic root of 5647723 is about 178.0838198844.

The spelling of 5647723 in words is "five million, six hundred forty-seven thousand, seven hundred twenty-three".